Skywatching

A simulation of Saturn showing its rings aligned almost edge on to Earth against a black background, with a circular dark shadow marking its upper disk.

Titan's shadow crosses Saturn as the planet offers up its best views of 2025 this weekend

By Anthony Wood published

Titan's shadow will fall on Saturn in the early hours of Sept. 20, one day before the world shines at opposition in Earth's sky

Stargazing
A smiling woman looking through the viewfinder on a Sony A7 III with buildings in the background.

Sony A7 III now $400 off in this limited-time deal — be ready to capture October's full moon

By Harry Bennett published

Deals This limited-time deal gets you the Sony A7 III for just $1498 ahead of Amazon Prime Day in October and the Harvest moon — but it ends in three days.

Deals
graphic with night sky in large font and silhouettes of people below looking up at the night sky.

Night sky for tonight: Visible planets, stars and more in this evening's sky

By Jamie Carter last updated

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

Stargazing
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Spaceflight

two men in short sleeve shirts and kahki slacks wear protective glasses, masks and gloves to protect against floating debris before entering a cargo ship berthed with a space station.

Astronauts find sweet treats aboard extra-large Cygnus supply ship | On the International Space Station Sept. 15-19, 2025

By Robert Z. Pearlman published

The Expedition 73 crew on the International Space Station began their week with the arrival of an extra-large cargo delivery with new science and supplies, as well as care packages from home.

International Space Station
An illustration of a small six-wheeled rover on the reddish surface of Mars

Landing site for Rosalind Franklin rover may be ripe with clues about ancient Mars life

By Stefanie Waldek published

Natural geologic processes at Mars' Oxia Planum may improve the Rosalind Franklin rover's chances of detecting organic compounds.

Mars Rovers
A SpaceX Falcon 9 rocket launches 24 Starlink satellites to orbit from Vandenberg Space Force Base in California on Sept. 19, 2025.

SpaceX launches 24 Starlink internet satellites to orbit from California (video)

By Mike Wall published

SpaceX launched 24 more of its Starlink internet satellites today (Sept. 19), sending them up from Vandenberg Space Force Base in California.

Launches & Spacecraft
A gray-scale photo showing a shadow of NASA's Curiosity Mars rover on the ground, with its square Mastcam "head" overlaid on a rocky terrain of "boxwork" patterns across the Martian landscape.

Curiosity Mars rover puzzles over intriguing 'boxwork' pattern | Space photo of the day for Sept. 19, 2025

By Kenna Hughes-Castleberry published

NASA's Curiosity Mars rover has been exploring the slopes of Mount Sharp looking for clues about Mars' watery past. Here, it looks at the boxwork pattern for ancient water flow.

Mars Rovers
Graphic illustration with 'space calendar' in large blue neon letters and 2025 below it in smaller white letters. Below the title are four neon images depicting a meteor or comet, a telescope, a rocket launch and an astronaut's helmet. There is a starry background to the entire image.

Space calendar 2025: Rocket launches, skywatching events, missions & more!

By Space.com last updated

Reference Keep up with all the rocket launches, astronomical events and mission milestones for 2025 with our space calendar.

Reference
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Science & Astronomy

Five bright red lights glow in a cross formation in the darkness of space

A massive dark matter halo may explain the strange 5th point of this 'Einstein Cross'

By Samantha Mathewson published

Astronomers have discovered a rare cosmic alignment that may reveal hidden dark matter, offering a new way to study the invisible substance that makes up most of the universe.

Dark Universe
Earth, half shaded

Autumnal equinox 2025 brings fall to the Northern Hemisphere on Sept. 22

By Joe Rao published

The autumn equinox brings fall to the Northern Hemisphere today when the sun passes over our planet's equator at noon.

Earth
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Space Photo of the Day

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Entertainment

Still from the Alien: Earth TV show.

'Alien: Earth' has the right approach to canon — pick-and-choose and ignore the bits that don't work

By Richard Edwards published

"Alien: Earth" has adopted a much looser approach to canon than most of its sci-fi counterparts, allowing it to tell good stories without restriction.

Space Movies & Shows
three men in white spacesuits walk down a narrow catwalk

'Apollo 13' launches back into IMAX theaters Sept. 19 for 30th anniversary

By Jeff Spry published

Director Ron Howard's 1995 space rescue thriller lives on with a special anniversary edition for one week only starting Sept. 19.

Space Movies & Shows
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What's Up In Space Today

Search For Life

A closeup of "leopard spots" on Mars seen by the Perseverance rover.

Could a Mars crater have once hosted life? NASA's Perseverance rover finds more evidence it's possible

By Sharmila Kuthunur published

Fresh analysis of Perseverance rover data reveals Jezero Crater experienced repeated episodes of water activity, strengthening the case for habitability and raising the stakes for Mars Sample Return.

Search for Life
A photo of the moon Enceladus with a blue plume of steam underneath it as it sits in the darkness of space

Is there life on Saturn's moon Enceladus? New study complicates the search

By Sharmila Kuthunur published

"Although this doesn't rule out the possibility that Enceladus' ocean may be habitable, it does mean we need to be cautious in making that assumption just because of the composition of the plumes."

Search for Life
a domed white building at night

US Congress is holding a UFO hearing today about 'restoring public trust.' Here's how to watch live

By Brett Tingley published

A U.S. House of Representatives task force will once again hold a hearing on Sept. 9 to hear from witnesses who claim the U.S. government is hiding evidence of UFOs.

Search for Life
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Technology

Seklin Galaxy Projector

Seklin Galaxy star projector review

By Kim Snaith published

The Seklin Galaxy Projector may be inexpensive, but unfortunately it shows in the quality and performance.

Technology
Thames & Kosmos Planetarium Projector

Thames and Kosmos planetarium star projector review

By Kim Snaith published

Both educational and mesmerizing, the Thames and Kosmos planetarium star projector is a great gift for kids.

Technology
Hand reaches out for one of the best drones

Best Drones 2025: Take your pick of the very best

By James Abbott last updated

These are the best drones on the market, with camera and flight performance that will impress even the most demanding pilots — and there are great deals to be had this Black Friday.

Drones
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