space

The farthest Kreutz sungrazer ever discovered will pass just 161,000 kilometers above the Sun's surface on Saturday, threading the inner solar corona in a make-or-break encounter that could produce a comet visible in broad daylight or end in total disintegration.

NASA's Hubble Space Telescope caught comet C/2025 K1 fragmenting into at least four pieces across three days, marking the closest-to-breakup observation in the telescope's history.

The Y Combinator graduate plans an 88,000-satellite constellation for orbital AI compute, backed by Benchmark and EQT Ventures.

Scientists have detected all five canonical nucleobases in pristine samples from asteroid Ryugu, the first confirmation of a complete set of DNA and RNA building blocks in material collected directly from space.

Two March discoveries reveal a 10-billion-year-old lava world with a thick atmosphere and a sulfur-dominated planet unlike anything in existing classification systems.

A 30-fold expansion of the solar-twin catalog shows the Sun migrated 10,000 light-years outward from the galactic center between four and six billion years ago, carried by the forming central bar.

A University of Washington team identifies signs of a catastrophic planetary collision around star Gaia20ehk, offering the first real-time analog of the giant impact that created Earth's Moon 4.5 billion years ago.

The 1,300-pound radiation belt spacecraft burned up over the eastern Pacific Ocean on March 11, ending a 14-year journey that began with a two-year mission and yielded the discovery of a transient third radiation belt around Earth.

South Africa's MeerKAT radio telescope has discovered a record-breaking hydroxyl gigamaser in a merging galaxy system, shattering the previous distance record by a factor of two.

Chinese Academy of Sciences spinoff CAS Space will attempt the first launch of its Kinetica-2 kerosene-LOX rocket from Jiuquan, carrying a prototype cargo spacecraft for the Tiangong space station.

Six months of observations of the third interstellar object ever detected have uncovered water, methane, and hydrogen cyanide in its coma--and a Jupiter flyby on March 16 could yield the closest-ever look at an interstellar visitor.

SpaceX is preparing to launch Starship Flight 12 in mid-March 2026, the first test of upgraded Block 3 vehicles powered by 33 Raptor 3 engines and the debut of Orbital Launch Pad 2.