Is the Hubble Tension Starting to Go Away?
For years, scientists have been scratching their heads over the “Hubble Tension,” the mismatch between how fast the cosmos was expanding in its youth versus how fast it’s expanding today.…
Isaacman: people with ‘axes to grind’ about Musk caused withdrawn NASA nomination
Jared Isaacman made clear he believes his nomination to be administrator of NASA was pulled by the White House because of his ties to Elon Musk. The post Isaacman: people…
‘Joy,’ a plush baby swan, will launch with Axiom Mission-4 crew as zero-g indicator
When an international crew of astronauts launch on a commercial space mission, they will be joined by a स्वैन, a łabędź or a hattyú. Or, in English, a swan.
Lockheed Martin launches ‘AI Fight Club’ to test algorithms for warfare
The company aims to create a digital proving ground for AI systems across air, land, sea, and space operations. The post Lockheed Martin launches ‘AI Fight Club’ to test algorithms…
ispace’s Resilience spacecraft lands on the moon this week: Here’s how to see the landing zone on the lunar surface
The lander won’t be visible from Earth, but its landing site on Mare Frigoris will be.
A tiny star gave birth to a giant exoplanet, but no one knows how
A giant exoplanet is surprisingly chill given how close it is to its red dwarf star — perhaps because the star is so little.
Mount Etna’s terrifying eruption from orbit | Space photo of the day for June 4, 2025
A satellite from the European Space Agency captured huge plumes of ash and smoke from Europe’s largest volcano.
How an odd star in the ‘Gaia Sausage’ could help solve one of astronomy’s most enduring mysteries
The discovery of a metal-rich star packed with both light and heavy elements hints at exotic stellar explosions and the role of ancient dwarf galaxies in seeding the cosmos with…
How NASA advisory committees are navigating a new political landscape
Since the start of the second Trump administration, NASA’s formal advisory committees have largely been suspended. While the congressionally mandated Aerospace Safety Advisory Committee has continued its work, the NASA…
Lunar helium-3: separating market from marketing
On May 5, 2025, Interlune — a Seattle-based startup — announced a new agreement with the U.S. Department of Energy (DOE): they’ll deliver helium-3, harvested from the moon, to Earth…