Science Mission Directorate

Amendment 73: D.9 Habitable Worlds Observatory Instrument Concept Assessments: Correction regarding collaborators on category 2 proposals

September 4, 2026

Habitable Worlds Observatory (HWO) Instrument Concept Assessments (HWO-ICA) program element D.9 of ROSES-25, solicits proposals to support maturation…

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Amendment 72: New Opportunity: A.17 Hydrosphere

September 2, 2026

A.17 Hydrosphere solicits research on the Earth’s Hydrosphere: to advance the understanding of the physics of Earth’s water…

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A rocket launches at night, surrounded by bright flames and smoke, with a tall supporting structure visible and the dark sky in the background.

September 2, 2026

High above Earth, thin veils of metallic haze drift through the edge of space. Known as sporadic E…

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NASA Sets Coverage for Roman Space Telescope Launch from Florida

August 24, 2026

Coverage plans are ready for NASA’s Nancy Grace Roman Space Telescope prelaunch and launch activities. Roman is NASA’s…

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August 19, 2026

Episode description: NASA’s Nancy Grace Roman Space Telescope is on a quest to discover planets outside our solar…

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NASA Completes Astronaut-Deployed Science Instrument for Lunar Surface

August 11, 2026

NASA has declared “wrenches down” on the first completed payload designed for Artemis astronauts to deploy on the…

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A.14 Atmosphere Several Corrections - NASA Science

July 31, 2026

The Earth Science Division recently released A.14 Atmosphere, soliciting proposals for data analysis and modeling of NASA supported…

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A total solar eclipse is seen in Dallas, Texas on Monday, April 8, 2024. A total solar eclipse swept across a narrow portion of the North American continent from Mexico’s Pacific coast to the Atlantic coast of Newfoundland, Canada. A partial solar eclipse was visible across the entire North American continent along with parts of Central America and Europe.

July 30, 2026

On Wednesday, Aug. 12, a total solar eclipse will be visible in parts of Greenland, Iceland, northern Russia,…

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NASA Space Telescope Maps Magnetic Fields of ‘Lighthouse’ Pulsar

July 28, 2026

The IXPE GO Program solicits proposals for investigations in any area of astrophysics (not constrained to IXPE’s prime…

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Amendment 68: New Opportunity: D.8 Habitable Worlds Observatory Precursor Science Investigations

July 27, 2026

The Habitable Worlds Observatory (HWO) is a large-aperture ultraviolet/visible/near-infrared observatory concept recommended by the National Academies of Science,…

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Amendment 66: B.2 Heliophysics Foundational Research Step-2 Due Date Announced and Correction

July 25, 2026

B.2 Heliophysics Foundational Research (HFR) solicits investigations that advance the fundamental physical understanding of the Sun-Heliosphere-Planetary system. The…

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NASA’s MAVEN Illuminates New Understanding of Auroras at Mars

July 23, 2026

NASA MAVEN (Mars Atmosphere and Volatile Evolution) mission scientists have uncovered a key puzzle piece in understanding certain…

Amendment 73: D.9 Habitable Worlds Observatory Instrument Concept Assessments: Correction regarding collaborators on category 2 proposals

Amendment 72: New Opportunity: A.17 Hydrosphere

NASA Rocket Takes First Multi-Point Look Inside Radio-Disrupting Clouds

NASA Sets Coverage for Roman Space Telescope Launch from Florida

Roman Series: Jupiters Around Other Suns

NASA Completes Astronaut-Deployed Science Instrument for Lunar Surface

A.14 Atmosphere Several Corrections – NASA Science

NASA Sets Coverage for August Northern Hemisphere Total Solar Eclipse

Amendment 67: D.3 AGIGO: Change to IXPE and NICER General Observer Second Opportunity in ROSES-25

Amendment 68: New Opportunity: D.8 Habitable Worlds Observatory Precursor Science Investigations

Amendment 66: B.2 Heliophysics Foundational Research Step-2 Due Date Announced and Correction

NASA’s MAVEN Illuminates New Understanding of Auroras at Mars