Following the light of the sun, we left the Old World.

— Inscription on Columbus' caravels

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Updated: 6 hours 46 min ago

'Here today, Gorn tomorrow:' Showrunners talk putting a classic alien adversary to rest in 'Star Trek: Strange New Worlds' (exclusive)

Thu, 07/24/2025 - 9:00am
'Here today, Gorn tomorrow. I think it's now time for other scary things to take their place.'
Categories: Astronomy

New fiber optic telescope 4MOST channels 'The Fantastic Four' | Space photo of the day for July 24, 2025

Thu, 07/24/2025 - 8:00am
Marvel's new superhero movie isn't the only thing featuring some of the brightest stars.
Categories: Astronomy

Largest-ever supernova catalog ever provides further evidence dark energy is weakening

Thu, 07/24/2025 - 6:00am
A catalog of over 2,000 exploding white dwarf vampire stars, the largest ever gathered, has provided further evidence that dark energy is weakening.
Categories: Astronomy

2 Earth weather satellites accidentally spy on Venus

Wed, 07/23/2025 - 5:00pm
Japan's Himawari-8 and Himawari-9 satellites, designed to study weather here on Earth, have also been quietly collecting valuable data on Venus for nearly a decade, scientists recently discovered.
Categories: Astronomy

New Neil Armstrong Prize to honor achievements in space

Wed, 07/23/2025 - 4:00pm
Purdue University's new Neil Armstrong Space Prize, named for the school's most famous astronaut-alum, will honor achievements in "space discovery, innovation and human achievement."
Categories: Astronomy

See Tianzhou 9 cargo mission dock at China's Tiangong space station (video)

Wed, 07/23/2025 - 3:00pm
The Tianzhou 9 freighter arrived at China's Tiangong space station last week, packed with supplies. Watch its arrival in this video.
Categories: Astronomy

Scientists may have solved a chemistry mystery about Jupiter's ocean moon Europa

Wed, 07/23/2025 - 2:00pm
A long-standing mystery about the presence of hydrogen peroxide on Jupiter's icy ocean moon Europa may be closer to being solved.
Categories: Astronomy

Space Force's Golden Dome chief says space-based missile interceptors are possible today. 'We have proven every element of the physics'

Wed, 07/23/2025 - 1:23pm
The head of the Trump administration's Golden Dome program says the technologies needed to create such an ambitious space-based missile defense system already exist.
Categories: Astronomy

Interstellar invader Comet 3I/ATLAS is packed with water ice that could be older than Earth

Wed, 07/23/2025 - 1:00pm
Scientists have examined the interstellar invader 3I/ATLAS, finding evidence that it is packed with water that could be older than the solar system.
Categories: Astronomy

Ozzy Osbourne's journey through space, time and sci-fi: A Tribute to the 'Prince of Darkness'

Wed, 07/23/2025 - 12:29pm
A Space.com obituary for the ‘Prince of Darkness' Ozzy Osbourne.
Categories: Astronomy

How do scientists calculate the probability that an asteroid could hit Earth?

Wed, 07/23/2025 - 11:00am
The 2024 YR4 asteroid may come close to Earth, but how do experts calculate this potential impact?
Categories: Astronomy

The Milky Way brightens the moonless summer sky this week: Here's where to look

Wed, 07/23/2025 - 10:00am
Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on July 24.
Categories: Astronomy

This star escaped a supermassive black hole's violent grips — then returned for round 2

Wed, 07/23/2025 - 9:00am
A death-defying star survived destruction by a ravenous supermassive black hole in a tidal disruption event, and came back to let the cosmic titan take another bite!
Categories: Astronomy

Rare sight from space: Snow dusts the dry Atacama Desert | Space photo of the day for July 23, 2025

Wed, 07/23/2025 - 8:30am
The Atacama Desert in Chile recently received some snowfall, causing issues for the ALMA (Atacama Large Millimeter/submillimeter Array) telescope.
Categories: Astronomy

Sharp-eyed US-Indian satellite set to launch July 30 to monitor Earth's surface, warn of natural disasters

Wed, 07/23/2025 - 6:00am
NISAR, a joint mission of NASA and ISRO set to launch on July 30, will be able to see shifts in the landscape smaller than a centimeter to give warning of potential natural disasters.
Categories: Astronomy

SpaceX launches 2 powerful internet satellites, lands rocket on ship at sea (video)

Tue, 07/22/2025 - 5:24pm
A SpaceX Falcon 9 rocket launched two of SES's O3b mPOWER communications satellites toward medium-Earth orbit today (July 22), then aced its landing on a ship at sea.
Categories: Astronomy

This 200-light-year-wide structure could be feeding our galaxy's center: 'No one had any idea this cloud existed'

Tue, 07/22/2025 - 3:06pm
Astronomers have discovered a 200-light-year-wide Giant Molecular Cloud dubbed the Midpoint cloud that seems to be feeding star-building material to the heart of the Milky Way.
Categories: Astronomy

Don't miss the crescent moon cozy up to Jupiter early on July 23

Tue, 07/22/2025 - 2:00pm
The thin crescent moon and Jupiter will be visible to the naked eye for early risers on July 23.
Categories: Astronomy

'They are coming here.' AI soldiers invade Earth in thrilling new 'Tron: Ares' trailer

Tue, 07/22/2025 - 1:31pm
'A malfunctioning program who wants to live. Why is that?'
Categories: Astronomy

Stunning twilight photo captures comet bidding farewell to Earth for 80,000 years

Tue, 07/22/2025 - 1:00pm
Miguel Claro took one last look at Comet C/2023 A3 Tsuchinshan-Atlas as it bid farewell to Earth for the next 80,000 years.
Categories: Astronomy