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Space.com • Mike Wall

Northrop Grumman’s first Cygnus XL freighter set to depart ISS March 12

Northrop Grumman’s first Cygnus XL cargo spacecraft is scheduled to depart the International Space Station Thursday, March 12 at 7:05 a.m. EDT (1105 GMT). NASA will stream the undocking live as the new Cygnus variant completes its resupply mission and prepares for post‑undock disposal operations.

2026-03-11T12:09:01.367071-07:00

SpaceNews.com

Political impatience risks schedule slips and cost overruns for NASA’s Artemis lunar program

2026-03-11T06:27:22.735834-07:00

Space.com

DART images reveal asteroids ejecting 'cosmic snowballs' — ejecta dynamics force rethink of planetary‑defense models

2026-03-11T05:01:36.027966-07:00

SpaceNews.com

NASA disqualifies X-ray telescope proposal from Probe-class astrophysics competition

2026-03-11T05:52:23.180456-07:00

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Space.com

Northrop Grumman’s first Cygnus XL freighter set to depart ISS March 12 Northrop Grumman’s first Cygnus XL cargo spacecraft is scheduled to depart the International Space Station Thursday, March 12 at 7:05 a.m. EDT (1105 GMT). NASA will stream the undocking live as the new Cygnus variant completes its resupply mission and prepares for post‑undock disposal operations.

2026-03-11T12:09:01.367071-07:00

Northrop Grumman’s first Cygnus XL freighter set to depart ISS March 12

NASA

Expedition 74 conducts cardiovascular research, prepares EVA to upgrade ISS power as Cygnus XL readies to depart Expedition 74 crew carried out cardiovascular studies while preparing for a planned extravehicular activity to upgrade the International Space Station's power generation system. Meanwhile, Northrop Grumman's Cygnus XL cargo spacecraft was packed and scheduled to depart the station later Thursday.

2026-03-11T12:08:59.218942-07:00

Expedition 74 conducts cardiovascular research, prepares EVA to upgrade ISS power as Cygnus XL readies to depart

SpaceNews.com

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Political impatience risks schedule slips and cost overruns for NASA’s Artemis lunar program Political pressure to accelerate Artemis timelines is increasing the risk of schedule slips, cost growth and technical trade‑offs across NASA’s lunar programme. Shortened decision windows and architecture changes are straining contractors, compressing launch margins for SLS/Orion and complicating plans for a crewed lunar landing target.

2026-03-11T06:27:22.735834-07:00

Political impatience risks schedule slips and cost overruns for NASA’s Artemis lunar program

SpaceNews.com

NASA disqualifies X-ray telescope proposal from Probe-class astrophysics competition NASA disqualified one of two proposals competing to become the agency's next Probe-class X‑ray telescope, a move the mission's principal investigator blamed on last year's internal upheaval at the agency. The decision leaves a single remaining bidder in the competition and tightens NASA's selection options.

2026-03-11T05:52:23.180456-07:00

NASA disqualifies X-ray telescope proposal from Probe-class astrophysics competition

Space.com

DART images reveal asteroids ejecting 'cosmic snowballs' — ejecta dynamics force rethink of planetary‑defense models NASA's DART mission captured images showing the impacted asteroid ejecting large clumps of material — 'cosmic snowballs' — a phenomenon engineers initially mistook for a camera fault. The observed clumping and trajectories of ejecta alter assumptions about momentum transfer and debris dispersal used in planetary‑defense planning.

2026-03-11T05:01:36.027966-07:00

DART images reveal asteroids ejecting 'cosmic snowballs' — ejecta dynamics force rethink of planetary‑defense models

Universe Today

Van Allen Probe A reenters and burns up after early, solar-driven uncontrolled descent NASA's Van Allen Probe A — a spacecraft launched in 2012 to map Earth's radiation belts — re-entered Earth's atmosphere in March 2026, burning up over the Pacific near the Galapagos. The uncontrolled, early reentry followed enhanced solar activity and raises questions about debris and reentry safety.

2026-03-11T03:19:28.495250-07:00

Van Allen Probe A reenters and burns up after early, solar-driven uncontrolled descent

newswise.com

Probable neutron-star merger GRB 230906A traced to dwarf galaxy in tidal debris — candidate most-distant kilonova/GRB NASA telescopes including Chandra and Hubble traced short gamma-ray burst GRB 230906A to a faint dwarf galaxy in a vast tidal debris stream, identifying a probable neutron-star merger and kilonova. Published in The Astrophysical Journal Letters, the event may be the most distant kilonova/GRB and challenges progenitor-environment models.

2026-03-10T17:42:26.059133-07:00

Probable neutron-star merger GRB 230906A traced to dwarf galaxy in tidal debris — candidate most-distant kilonova/GRB

SpaceNews.com

Starlab Space sells out commercial payload capacity ahead of NASA's next LEO program phase Starlab Space has fully booked the commercial payload capacity on its planned low‑Earth‑orbit station, locking in customer manifests as it awaits the next phase of NASA's LEO program that will guide agency engagement and scheduling. The sell‑out underscores commercial demand for private orbital platforms.

2026-03-10T16:27:21.976002-07:00

Starlab Space sells out commercial payload capacity ahead of NASA's next LEO program phase

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NASA News

Northrop Grumman’s first Cygnus XL freighter set to depart ISS March 12

Political impatience risks schedule slips and cost overruns for NASA’s Artemis lunar program

DART images reveal asteroids ejecting 'cosmic snowballs' — ejecta dynamics force rethink of planetary‑defense models

NASA disqualifies X-ray telescope proposal from Probe-class astrophysics competition

News Timeline