HST Mid-Cycle Approved Programs

Observing programs accepted in proposal calls between cycles

Last updated  

For other accepted HST programs, see http://www.stsci.edu/hst/proposing/approved-programs.

MidCyclePhase II IDPI FirstNamePI LastNamePI InstitutionOrbitsTitle
27-216073JessicaAgarwalMax Planck Institute for Solar System Research6Individual component shapes and rotation states in binary main-belt comet 288P
27-216077BryceBolinCalifornia Institute of Technology3Determining the cause of activity of the first active Trojan, 2019 LD2
27-216085LeonardoDos SantosUniversity of Geneva-Department of Astronomy5Atmospheric escape in the young transiting planet DS Tuc A b
27-216069BorisGaensickeThe University of Warwick4TCP J21040470+4631129 - a highly evolved cataclysmic variable unmasked?
27-216070NicolaGentile FusilloThe University of Warwick12Exploring evolved planetary systems: three new  debris discs
27-216075WynnJacobson-GalanNorthwestern University2Late-time Observations of Calcium-Rich Transient SN 2019ehk
27-216087DavidJewittUniversity of California - Los Angeles5Optical Evolution of Interstellar Object 2I/Borisov
27-216071NimishaKumariSpace Telescope Science Institute7Preparing for JWST with HST/COS spectrsocopy of Pox 186: a local analogue of z > 6 galaxy
27-216079DanielLennonInstituto de Astrofisica de Canarias3Does the binary system LB-1 host a Black Hole?
27-216086JoshuaLothringerThe Johns Hopkins University10Comparing Escaping Metals and Heat Deposition in Ultra-hot Jupiters
27-216080AlexandraManningsUniversity of California - Santa Cruz6Resolving the Host Galaxies of Fast Radio Bursts
27-216088KarenMeechUniversity of Hawaii10Tracking the Outbound Motion of Interstellar Comet 2I/Borisov.
27-216082OliverMuellerUniversite de Strasbourg I1A new enigmatic population of over-luminous globular clusters in an ultra-diffuse galaxy
27-216076SamanthaOatesUniversity of Birmingham4UV spectroscopy and imaging of the transient Swift J221951-484240 discovered in the follow-up of GW S190930t.
27-216081JamesRhoadsNASA Goddard Space Flight Center6Let's Point Hubble at a Bubble!
27-216078DavidSandUniversity of Arizona4Late Time Photometry of a Type Ia Supernova with an Early, Red Light Curve Excess
27-216072ShriharshTendulkarMcGill University4Constraining the local environment and possible binarity of the closest-known Fast Radio Burst source
27-216083KamenTodorovUniversiteit van Amsterdam10Water and methane in a juvenile transiting exoplanet
27-216084MichaelWongUniversity of California - Berkeley5The Disruption of a Dark Vortex on Neptune
27-216074MichaelWongUniversity of California - Berkeley3Cyclones as the Dominant Source Regions for Jovian Lightning
27-216089QuanzhiYeUniversity of Maryland1A new member of a new comet group: characterization of C/2019 Y4 (ATLAS)
27-116049DennisBodewitsAuburn University15HST/COS chemical inventory and activity of interstellar object 2I/Borisov
27-116040BryceBolinCalifornia Institute of Technology6Constraining the coma volatile content of interstellar comet 2I/Borisov
27-116047JoelBregmanUniversity of Michigan1A SN Ia Event in a Globular Cluster of a Nearby Galaxy
27-116033CynthiaFroningUniversity of Texas at Austin10UV Spectroscopy of LTT1445A: Evaluating the Energetic Irradiance on a Nearby Terrestrial Exoplanet
27-116034BorisGaensickeThe University of Warwick10Dissecting the evaporating atmosphere of a giant planet in a close orbit around a white dwarf with COS ultraviolet spectroscopy
27-116035NicolaGentile FusilloThe University of Warwick14Exploring evolved planetary systems: three new gaseous debris discs
27-116041DavidJewittUniversity of California - Los Angeles3Interstellar Comet C/2019 Q4 (Borisov)
27-116042AndrewLevanRadboud Universiteit Nijmegen7 + 5Do collapsars make the heavy elements: A sensitive search in a nearby gamma-ray burst?
27-116038MichaelMcDonaldMassachusetts Institute of Technology2Imaging a Rare Starburst Central Galaxy in a Merging Cluster
27-116048KristenMcQuinnRutgers the State University of New Jersey13Extremely Metal Poor Galaxies: Understanding the Boundaries of Galaxy Evoution
27-116043KarenMeechUniversity of Hawaii14Characterization of the second interstellar object
27-116039DavidSingThe Johns Hopkins University14Characterizing the outstanding super-Earth LTT 1445Ab
27-116045LindaSmithSpace Telescope Science Institute - ESA8COS observations of a very young massive star cluster in the blue compact dwarf galaxy NGC 5253
27-116037MauroStefanonUniversiteit Leiden4Securing a sample of exceptionally bright z>~9 galaxies to prepare for JWST and probe early galaxy assembly
27-116046PaulaSzkodyUniversity of Washington3Understanding the Instability Strip of Accreting Pulsating White Dwarfs: Followup to a Recent COS Result
27-116044QichengZhangCalifornia Institute of Technology15Polarimetry of New Interstellar Comet 2I/Borisov
27-116036YifanZhouUniversity of Texas at Austin15Mapping Clouds on a Variable Planetary-Mass Companion
2615706JessicaAgarwalMax Planck Institute for Solar System Research6Causes of activity in newly discovered active asteroids P/2019 A4 and P/2019 A7
2615698ThomasBeattyUniversity of Arizona8Reconnaissance of the Hottest Neptune-Class Planet Transiting a Bright Parent Star
2615690AparnaBhattacharyaNASA Goddard Space Flight Center7Host Mass and Distance Dependence of Wide Orbit Planets with Near Simultaneous HST and Keck AO Observations
2615694VincentBourrierObservatoire de Geneve2UV reconnaissance of the evaporating super-Neptune WASP-107b
2615700FrederickBruhweilerAmerican University3Down the Tube: A 21st Century Study of a Unique Stellar Jet
2615696DavidCartonCentre de Recherche Astrophysique de Lyon5Constraints on the physical origins of Lyman-alpha halos at z>4 from giant gravitational arcs
2615701ScottChapmanDalhousie University10The most massive protoclusters at z=4.3-5.8 selected by the South Pole Telescope
2615704HannahDiamond-LoweHarvard University10A First Opportunity to Test Models of Atmospheric Escape for a Terrestrial Exoplanet
2615692AndreasFaisstCalifornia Institute of Technology6HST imaging for an immediate study of the ISM in z=4.5 galaxies
2615697StevenFinkelsteinUniversity of Texas at Austin2Photometric Confirmation of the Brightest Known Galaxy Candidate at z > 9
2615699AntonioGarcia MunozTechnische Universitat Berlin10Pi Men c: The first confirmed water world?
2615693OrGraurHarvard University4The late-time NIR light curves of SNe 2017erp and 2018gv
2615707KnudJahnkeMax-Planck-Institut fur Astronomie, Heidelberg4Is the z=6.3 QSO PSOJ083+11 an accretion monster or gravitationally lensed?
2615691CharlesKilpatrickUniversity of California - Santa Cruz2The Progenitor of Supernova 2017ein
2615708AndrewLevanThe University of Warwick3 + 3Unpicking the exceptional properties of the first TeV emitting gamma-ray burst
2615702TakahiroMorishitaSpace Telescope Science Institute4Is bright galaxy formation different in the epoch of reionization? Confirmation of the brightest candidates at redshift z>8
2615709MattNichollRoyal Observatory Edinburgh2An extreme interacting supernova from a very massive star: probing the immediate and galaxy-scale environment of a new pair-instability candidate
2615705KailashSahuSpace Telescope Science Institute3 + 4 + 1Accurate Mass Determination of the Nearby Single White Dwarf L145-141 (LAWD 37) through Astrometric Microlensing
2615703PaulaSzkodyUniversity of Washington2Determining the Cooling Curve of the Unique Extreme Amplitude Dwarf Nova V386 Ser Containing an Accreting, Pulsating White Dwarf.
2615695Pietervan DokkumYale University10An accurate distance to the controversial low-dark matter galaxy NGC1052-DF4
25-215481JessicaAgarwalMax Planck Institute for Solar System Research5The orbital evolution of binary main-belt comet 288P/300163
25-215465DanielleBergThe Ohio State University8Resolving Extreme High-Ionization UV Emission-Line Diagnostics in Preparation for JWST
25-215464AriannaBrownUniversity of California - Irvine8Resolving the Stellar Histories of Herschel-Red Dusty Star Forming Galaxies at z~4
25-215478MartinCordinerNASA Goddard Space Flight Center5Resolving a possible problem with the interstellar C60+ assignment
25-215466HaraldEbelingUniversity of Hawaii5A precise measurement of the mass distribution of the massive cluster lens eMACSJ1341.9-2442
25-215467DawnErbUniversity of Wisconsin - Milwaukee3The Brightest Lens in the Sky: Stellar Populations on ~50 pc Scales at the Peak Epoch of Star Formation
25-215472AaronEvansThe University of Virginia10Star Cluster Formation and Evolution in Luminous Galaxy Mergers: A Joint JWST-HST Investigation
25-215468JacquelineFahertyAmerican Museum of Natural History5Backyard Worlds
25-215473JonathanFraineSpace Telescope Science Institute4WFC3-UVIS Eclipse Observation of WASP-43b: Helping James Webb See Through the Clouds
25-215474MatthewHoskinThe University of Warwick5Water Delivery in Extrasolar Systems: Accretion of Water-Rich Debris onto a Spectacularly Polluted White Dwarf
25-215480BerndHusemannMax-Planck-Institut fur Astronomie, Heidelberg4A cosmic dance at high redshift - Resolving the host galaxies of a 20kpc separation dual AGN system at z=3.3 with WFC3/IR
25-215479FlavienKieferCNRS, Institut d'Astrophysique de Paris4Simultaneous detection of Mg, C and O in the variable spectrum of Beta Pictoris to trace dust and ices in exocomets
25-215482JosephLymanThe University of Warwick10Unveiling the nature of GW170817 through late-time observations: A normal short GRB viewed off-axis or a unique event?
25-215471MatthewMalkanUniversity of California - Los Angeles6The Extreme Starbursts that Re-ionized the Universe: Definitive Spectroscopic Detections of  Escaping Lyman Limit Photons
25-215461CarlMelisUniversity of California - San Diego7The detailed elemental composition of an exo-Pluto
25-215475HooshangNayyeriUniversity of California - Irvine2Constraining the Stellar Mass and Mode of Star-formation in an Extremely Starbursting Lensed Sub-millimeter Galaxy During Peak Epoch of Star-formation
25-215469NikolayNikolovUniversity of Exeter10Characterizing a new prototype Saturn-mass exoplanet with the clearest atmosphere yet
25-215470ClaudiaScarlataUniversity of Minnesota - Twin Cities5SXDF308: challenging the Case-B assumption in Extreme Emission Line Galaxies
25-215460ScottSheppardCarnegie Institution of Washington4The Orbit of the Newly Discovered Satellite around the Dwarf Planet 2013 FY27
25-215462J.ShullUniversity of Colorado at Boulder6The Super-DLA in our Galactic Backyard
25-215477RussellSmithDurham Univ.2A low-redshift strong-lensing elliptical galaxy with a bright source: A unique test for IMF gradients
25-215476DanielWeiszUniversity of California - Berkeley8The Formation History of Milky Way Satellite Canes Venatici I
25-215463AllisonYoungbloodNASA Goddard Space Flight Center10Benchmark Multi-Wavelength Flare Spectra of M Dwarfs
25-115422DanielleBergUniversity of Wisconsin - Milwaukee3Anchoring C/O with an Extremely Metal Deficient Galaxy
25-115413EdwardCackettWayne State University3Accretion disk reverberation mapping of the high Eddington rate Seyfert 1 Mrk 110
25-115435JohnChisholmObservatoire de Geneve4The sub-kiloparsec comparison of stellar clumps and molecular gas within the spiral arms of a high-redshift galaxy
25-115429MartinCordinerNASA Goddard Space Flight Center5Is C60+ present in the diffuse interstellar medium?
25-115426DenijaCrnojevicTexas Tech University2Characterizing the first Ultra-Compact Dwarf with a resolved extended halo
25-115418HaakonDahleUniversity of Oslo3Probing spatially variable Lyman-continuum escape from the brightest lensed galaxy in the universe
25-115425Katherinede KleerCalifornia Institute of Technology10Eclipse Observations of Europa's Water Plumes
25-115421TonyFarnhamUniversity of Maryland10The Nucleus of comet 41P/Tuttle-Giacobini-Kresak
25-115415OrGraurHarvard University4One last peek at SN 2015F
25-115428ChristinaHedgesNASA Ames Research Center10Sub-Neptune Atmosphere Characterization in a Multi-Planet System
25-115423DavidJewittUniversity of California - Los Angeles4Characterization of Distant Comet C/2017 K2
25-115430BaptisteLavieObservatoire de Geneve8Atmopsheric Escape from the Closest Super-Earth at High Spectral Resolution
25-115414RohanNaiduHarvard University5Confirming Extreme Lyman Continuum Emission in a z=3.27 Star-Forming Galaxy
25-115417EricPengPeking University1Globular clusters and dark matter in the Virgo ultra-diffuse galaxy VLSB-B
25-115431RobertoRaddiThe University of Warwick5GD492: a nearby hypervelocity emissary from a thermonuclear supernova event
25-115416MarcRafelskiSpace Telescope Science Institute8Identifying DLA Host Galaxies: The First Deep Ultraviolet Imaging of a high NHI Damped Lyman-alpha System
25-115434SethRedfieldWesleyan University9Searching for Atmospheric Loss Signatures In the Newly Discovered Super-Earth GJ9827b
25-115432NoelRichardsonUniversity of Toledo2The nature of the current outburst of the Be star HD 6226
25-115419LorenzRothRoyal Institute of Technology55Abundance, composition, and variability of Europa's plumes: Pathfinding future habitability investigations
25-115433DanielSchaererObservatoire de Geneve8The first UV emission line spectrum of a strong low-z Lyman continuum leaker - a key to studying the sources of cosmic reionization
25-115427JamesSchombertUniversity of Oregon8Exploring the Nature of Dark Matter Through Near-IR CMD's of LSB Galaxies
25-115424WilliamSparksSpace Telescope Science Institute30An intensive ultraviolet imaging campaign for Europa's plumes
25-115420ChiaraSpinielloINAF, Osservatorio Astronomico di Capodimonte2The first compact massive lens galaxy in the Kilo Degree Survey
25-115412PaulWilsonUniversiteit Leiden6Observing the final part of the beta Pic Hill Sphere Transit in the far-UV
24-214920BenjaminBoizelleUniversity of California - Irvine1Precision Measurement of the Black Hole Mass in NGC 3258
24-214917VincentBourrierObservatoire de Geneve10What is the origin of the UV-absorbing dust cloud orbiting the iconic star 55 Cnc ?
24-214912BorisGaensickeThe University of Warwick9High-precision asteroseismology of the accreting white dwarf in GW Lib through simultaneous HST and K2 observations
24-214922PatrickKellyUniversity of California - Berkeley5Probing the Nature of Dark Matter with Individual Stars Highly Magnified by a Galaxy Cluster
24-214915LauraKreidbergHarvard University5First Atmosphere Characterization of the Benchmark Exo-Neptune WASP-107b
24-214921MonikaLendlSpace Research Institute, Austrian5Atmospheric escape from a mini-Neptune
24-214919BruceMcCollumAmerican University7First UV Spectroscopy of an Incipient Stellar Merger in Its Pre-Merger Phase
24-214923GoeranOestlinStockholm University7LYCAT - LYman Continuum and Alpha in Tol1214-277
24-214924AnilSethUniversity of Utah5Increasing Diversity in Galaxies with Black Hole Mass Measurements
24-214916JessicaSpakeUniversity of Exeter6Probing methane chemistry in a newly-discovered warm gas giant before JWST
24-214918HannahWakefordNASA Goddard Space Flight Center10Definitive measurement of WASP-17b's water abundance in preparation for JWST
24-114884JessicaAgarwalMax Planck Institute for Solar System Research4Characterising the dust ejection process in the first known active binary asteroid system 288P/300163.
24-114876EduardoBanadosCarnegie Institution of Washington6Spectacular mergers at the cosmic dawn: a HST, ALMA, and JWST synergy
24-114896MatthewBaylissMassachusetts Institute of Technology5Precise Photometric Redshifts For Two Bright z>8 Galaxies
24-114887BjoernBennekeCalifornia Institute of Technology10Spectroscopic Characterization of a Newborn Neptune-Sized Planet
24-114877VincentBourrierObservatoire de Geneve10Confirmation and characterization of an exosphere around the super Earth 55 Cnc e
24-114895RychardBouwensUniversiteit Leiden5Confirmation of ultra-luminous z~9 galaxies
24-114893ElmeBreedtThe University of Warwick3The evolutionary history and accretion geometry of the eclipsing binary CSS1621+4412
24-114888JasonDittmannHarvard University10Initial Reconaissance of a Transiting Rocky Planet in a Nearby M-Dwarf's Habitable Zone
24-114885FredHamannUniversity of California - Riverside3Monitoring the Extraordinary Transient Outflow in the Quasar PG1411+442
24-114889JesusMaiz ApellanizCentro de Astrobiologia (CAB, CSIC-INTA)7HD 93 129 A: a new collision of two powerful winds and possibly of their sources
24-114892BruceMcCollumAmerican University3Determining the Progenitor of a Red Transient
24-114886RussellSmithDurham Univ.3The unusual lensing BCG in Abell 1201: A steep IMF gradient, or an ultra-massive central black hole?
24-114891WilliamSparksSpace Telescope Science Institute6Confirming the ice plumes of Europa
24-114890ShriharshTendulkarMcGill University3Solving the enigma of Fast Radio Burst 121102
24-114894PaulWilsonCNRS, Institut d'Astrophysique de Paris9Observing the Beta Pic Hill sphere transit in the far-UV
23-214493VincentBourrierObservatoire de Geneve4UV exploration of two Earth-sized planets with temperate atmospheres
23-214490J.HowkUniversity of Notre Dame5Pop III material found 6 Gyr after the Big Bang? COS constraints on the lowest-metallicity gas at z<1
23-214498DavidJewittUniversity of California - Los Angeles5Comet P/2010 V1 as a Natural Disintegration Laboratory
23-214496AndrewNewmanCarnegie Institution of Washington4Resolving the Stellar Populations, Structure, and Kinematics of the NIR-Brightest Lensed Galaxy at z=2
23-214491KeithNollNASA Goddard Space Flight Center1Trojan Binary Candidate: A Slow-Rotating Mission Target
23-214497RenskeSmitDurham Univ.3Identifying z>12 galaxies with JWST: What sources produce strong UV emission lines?
23-214495DavidSobralLancaster University5The gas-metallicity and the ISM of the brightest Lyman-alpha emitter at z=6.6: metal-free?
23-214494JonathanTanUniversity of Florida3Peering to the Heart of Massive Star Birth. II. Completion of the Eight-Source Pilot Survey
23-214492MichaelWongUniversity of California - Berkeley4A New Dark Vortex
23-114462ZachoryBerta-ThompsonMassachusetts Institute of Technology2Hydrogen Escape from an Earth-size Exoplanet: a Reconnaissance Study
23-114459RychardBouwensUniversiteit Leiden2Preparing for JWST through Constraints on the Bright End of the z~9 LF from CANDELS
23-114461DavidEhrenreichObservatoire de Geneve5Atmospheric Escape from the Closest Super-Earth
23-114468ThomasEvansUniversity of Exeter5Characterizing an extreme planet on the verge of tidal disruption
23-114470BorisGaensickeThe University of Warwick5AR Sco: the first white dwarf pulsar?
23-114460FrederickHamannUniversity of Florida3A Remarkable New Transient Outflow in the Quasar PG1411+442
23-114458DavidJewittUniversity of California - Los Angeles4Hubble Investigation of Active Asteroid 324P/La Sagra
23-114464MercedesLopez-MoralesSmithsonian Institution Astrophysical Observatory4Atmospheric Sodium and a Precise Radius for the Closest Super-Earth
23-114469CarloManaraEuropean Space Agency - ESTEC5The HST-ALMA connection: measuring the FUV spectrum of a newly discovered transition disk down to the H2 and CO photodissociation regime
23-114463BruceMcCollumCatholic University of America2Identifying the Progenitor of a New Red Transient
23-114466IvanaOrlitovaAstronomical Institute, Academy of Sciences of CR5Lyman Alpha halo in a confirmed Lyman Continuum leaker
23-114465JonathanTanUniversity of Florida5Peering to the Heart of Massive Star Birth
23-114467SiyiXuEuropean Southern Observatory - Germany5A White Dwarf with an Actively Disintegrating Asteroid

HST Mid-Cycle Approved Programs

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HST Proposal Opportunities and Science Policies

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