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SpaceNews.com • Jeff Foust

NASA forced to choose which planetary missions to keep as program faces funding shortfall

NASA’s planetary science program is confronting a budget shortfall that agency leaders say will require “strategic choices” about which missions to continue. The shortfall is driving a program-wide reprioritization as NASA evaluates ongoing and planned planetary projects against constrained funding.

2026-03-18T05:18:40.243901-07:00

Space.com

Rainfall, rivers and seas on Titan: what Earth analogues teach mission planners

2026-03-18T05:18:38.707088-07:00

Space.com

NASA delays ISS spacewalk after onboard medical evacuation; EVA now slated for ~8 a.m. EDT (1200 GMT)

2026-03-17T21:07:20.621685-07:00

Universe Today

The Post‑ISS Era: Commercial and National Stations Set to Redefine LEO Research, Commerce and Security

2026-03-16T16:34:18.606261-07:00

News Timeline

SpaceNews.com

NASA forced to choose which planetary missions to keep as program faces funding shortfall NASA’s planetary science program is confronting a budget shortfall that agency leaders say will require “strategic choices” about which missions to continue. The shortfall is driving a program-wide reprioritization as NASA evaluates ongoing and planned planetary projects against constrained funding.

2026-03-18T05:18:40.243901-07:00

NASA forced to choose which planetary missions to keep as program faces funding shortfall

Space.com

Rainfall, rivers and seas on Titan: what Earth analogues teach mission planners Despite extreme cold and a hydrocarbon chemistry, Titan hosts rainfall, rivers and seas that mirror Earth's hydrological processes. Researchers are using terrestrial analogues and Earth-based observations to interpret Titan's surface, reduce mission risk, and refine landing-site and payload requirements for future Saturn-system exploration.

2026-03-18T05:18:38.707088-07:00

Rainfall, rivers and seas on Titan: what Earth analogues teach mission planners

Space.com

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NASA delays ISS spacewalk after onboard medical evacuation; EVA now slated for ~8 a.m. EDT (1200 GMT) NASA postponed a planned International Space Station extravehicular activity following an in-orbit medical evacuation and now expects the spacewalk to begin at about 8 a.m. EDT (1200 GMT). Mission managers will provide live coverage while they revise timelines and confirm crew readiness for external work.

2026-03-17T21:07:20.621685-07:00

NASA delays ISS spacewalk after onboard medical evacuation; EVA now slated for ~8 a.m. EDT (1200 GMT)

NASA

NASA's X-59 Readies Second Flight as Low‑Boom Supersonic Test Campaign Scales for 2026 NASA's X‑59 experimental low‑boom demonstrator is preparing for its second flight from Edwards AFB — a carefully paced test expected to set the tempo for a larger 2026 flight campaign. Upcoming sorties, including a planned 260 mph run at 20,000 ft, advance low‑boom supersonic research.

2026-03-17T14:09:33.847484-07:00

NASA's X-59 Readies Second Flight as Low‑Boom Supersonic Test Campaign Scales for 2026

SpaceNews.com

Tissue chips flown to model astronaut organ responses on the ISS Micro-scale tissue chips are being flown to the International Space Station to act as surrogates for human organs, enabling controlled study of cellular and tissue responses to microgravity and space radiation. Data will inform crew medical care and countermeasures for long-duration missions.

2026-03-17T04:12:24.080116-07:00

Tissue chips flown to model astronaut organ responses on the ISS

Universe Today

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The Post‑ISS Era: Commercial and National Stations Set to Redefine LEO Research, Commerce and Security NASA's International Space Station is slated to retire in 2030, and a mix of national successors, agency programs and commercial platforms aim to replace it. Multiple orbiting outposts will reshape research, manufacturing and logistics — and raise traffic, debris and security coordination challenges.

2026-03-16T16:34:18.606261-07:00

The Post‑ISS Era: Commercial and National Stations Set to Redefine LEO Research, Commerce and Security

SpaceNews.com

Investing in student programs is essential for America’s lead in space The author argues expanding and funding student programs is essential to sustain America’s leadership in space. Scaled internships, university partnerships and K–12 STEM outreach are needed to produce engineers, technicians and mission planners for upcoming government and commercial missions and to preserve industrial competitiveness.

2026-03-16T06:02:22.900980-07:00

Investing in student programs is essential for America’s lead in space

Payload

Jared Isaacman pledges monthly uncrewed lunar landings from 2027 to support Moon‑base construction Jared Isaacman announced plans to begin monthly uncrewed lunar landings in 2027 to support construction of a moon base, telling Spaceflight Now, “We are going to plus up for Moon base construction in a huge way.” The comments were made in an interview released late Friday.

2026-03-16T05:37:52.995115-07:00

Jared Isaacman pledges monthly uncrewed lunar landings from 2027 to support Moon‑base construction

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NASA News

NASA forced to choose which planetary missions to keep as program faces funding shortfall

Rainfall, rivers and seas on Titan: what Earth analogues teach mission planners

NASA delays ISS spacewalk after onboard medical evacuation; EVA now slated for ~8 a.m. EDT (1200 GMT)

The Post‑ISS Era: Commercial and National Stations Set to Redefine LEO Research, Commerce and Security

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