3I/ATLAS, our third discovered interstellar visitor, has been in the news a lot lately for a whole host of reasons, and rightly so given the amount of unique scientific data different groups and telescopes have been collecting off of it. A new pre-release paper from researchers at the Auburn University Department of Physics recounts yet another interesting aspect of the new visitor - its water content.
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A Fast Radio Burst from the Early Universe
Astronomers at the South African MeerKAT observatory have discovered the most distant flash of radio waves to date, most likely stemming from activity around a magnetar.
Watch Vulcan Centaur rocket launch experimental military satellite today
United Launch Alliance is set to launch an experimental navigation satellite on the first national security mission of its new Vulcan Centaur rocket on Aug. 12. Watch it live here.
Know this photo? Test your knowledge of these famous firsts in our astrophotography quiz!
Test out your knowledge of these famous firsts in skywatching and astrophotography, from the first photos of Earth and the moon to the invention of telescopes!
Hubble spots stars forming in the Tarantula nebula | Space photo of the day for Aug. 12, 2025
The Tarantula nebula was recently captured by the Hubble Space Telescope, where the Scylla program helped create the colored image of this star-forming area.
Scientists may have found a powerful new space object: 'It doesn't fit comfortably into any known category'
Nicknamed 'Punctum,' this puzzling phenomenon is highly energetic, but is only seen in millimeter-wavelength light and cannot be explained by any known object.
Live coverage: ULA to launch first national security mission on a Vulcan rocket
A United Launch Alliance Vulcan rocket stands at Space Launch Complex 41 at Cape Canaveral Space Force Station ahead of the launch of the USSF-106 mission. Image: Michael Cain/Spaceflight Now
More than four months after it was certified to fly national security payloads for the United States government, United Launch Alliance is on the cusp of launching just such a mission with its Vulcan rocket.
How to watch 'Alien: Earth' online and from anywhere
'Alien: Earth' is the first-ever Alien TV show and it's finally arrived. Here's how to watch 'Alien: Earth' wherever you are on the planet.
CREAM: avoiding collisions in space through automation
Earth orbit is becoming increasingly crowded. With over 11 000 active satellites and many thousands more expected in the coming years as well as over 1.2 million pieces of space debris greater than 1 cm, the risk of in-orbit collisions has turned into a daily operational concern. ESA is investing in automation technologies that can help satellite operators respond more effectively to collision risks.
The Europa Clipper Mission Tests it Radar Instrument at Mars
On October 14th, 2024, NASA's Europa Clipper mission began its long journey to Jupiter's icy moon Europa. On March 1st, the probe reached Mars, where it conducted a gravity-assist maneuver. While orbiting the Red Planet, mission controllers back on Earth took the opportunity to test the probe's Radar for Europa Assessment and Sounding: Ocean to Near-surface (REASON). Once it reaches Europa, Clipper will use this radar instrument to probe beneath the moon's icy sheet and search for pockets of water that could lie within.
How Telescope Noise Could Help Us Monitor Climate Change
Our powerful, modern, ground-based telescopes have to deal with a lot of noise in the starlight they observe. The noise comes from Earth's atmosphere, which forces telescopes to use solutions like adaptive optics to filter it out. Researchers at the University of Warwick in the UK, in partnership with Spanish institutions, are developing a method to use that noise to measure greenhouse gases (GHGs) in Earth's atmosphere.
Skyrora becomes 1st British company to get license to launch from the UK
Scotland-based Skyrora has received the first U.K.-issued vertical launch license for a homegrown company, enabling rocket launches from SaxaVord Spaceport in the Shetland Islands.
Can you name all the planets in order in the solar system? Try our new quiz to find out!
Our quiz will test your smarts of which planets go where in our solar system.
Meteorite that punched a hole through Georgia roof may be older than Earth itself
"This particular meteor that entered the atmosphere has a long history before it made it to the ground of McDonough".
James Webb telescope reveals 'Sleeping Beauty' galaxies in the early universe — snoozing where they weren't supposed to exist
Using data from the James Webb Space Telescope, astronomers have discovered dormant galaxies with a wide range of masses in the first billion years after the Big Bang, moving one step closer to understanding how early galaxies grow.
Astronomers Detect Most Distant Fast Radio Burst Ever
Fast radio bursts (FRBs) last around a millisecond and in doing so encode otherwise unattainable information on the plasma which permeates our Universe, providing insights into magnetic fields and gas distributions. In a paper authored by Manisha Caleb from the University of Sydney, the team report upon the discovery of FRB 20240304B which lies at a redshift of 2.148 +/- 0.001 corresponding to just 3 billion years after the Big Bang.
This Could Prevent Rovers From Getting Stuck In Sand Or Dust
It seems simple at first. The Moon and Mars are less massive than Earth and have weaker gravity. To test how a rover will traverse their surfaces, engineers make less massive engineering versions of rovers and test them in simulated surface conditions here on Earth. Since the Moon's gravity is six times weaker than Earth's, for example, engineers make versions of lunar rovers that are one sixth as massive. The data then tells engineers what they need to know.
Cassiopeia
Cassiopeia is a distinctive constellation in the northern sky, easily recognized by its prominent 'W' or 'M' shape, depending on its orientation in the night sky. It is named after the boastful Queen Cassiopeia in Greek mythology.
'He's totally misread that book' — 'Alien: Earth' cast talks 'Peter Pan' references, AI warnings, and navigating complex roles (exclusive)
Before the Xenomorph crash-lands on streaming, we talked to five Alien: Earth cast members about the difficulties and fun of navigating the giant sci-fi show.
NASA's Roman Space Telescope gets its 'extremely strong sunblock' installed
Scientists are making milestones on NASA's Roman Space Telescope as Trump continues to threaten the agency's science budget.
Mars orbiter looks deep into chasms and valleys on the Martian surface
ESA's Mars Express spacecraft has been imaging the dynamic Acheron Fossae region of Mars for more than 20 years.
