Today, it's a scientific consensus that Mars was once a very different place, with a warmer, denser atmosphere and liquid water on its surface. This is evidenced by flow channels, delta fans, lakebeds, and many other features that form in the presence of flowing water here on Earth. Based on the way many of these channels feed into the Northern Lowlands on Mars, scientists speculate that this region was once home to an ocean that covered the northern hemisphere. According to new research from the University of Arkansas, there is a strong case for the existence of this ancient ocean.
Space News & Blog Articles
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Longstanding “Ice Giant” Classification of Uranus and Neptune Might Be Conflicted
What if our understanding of Uranus and Neptune’s compositions have been wrong, specifically regarding their classifications as “ice giants”? This is what a recent study accepted for publication in *Astronomy & Astrophysics* hopes to address as a team of researchers from the University of Zurich investigated the interior structures of Uranus and Neptune. This study has the potential to help scientists not only better understand the formation and evolution of Uranus and Neptune but could also provide key insights into Jupiter and Saturn, and gaseous exoplanets, too.
Blue Origin rolls out powerful New Glenn rocket for testing ahead of Mars launch (video)
Blue Origin rolled the first stage of its powerful New Glenn rocket to the pad Wednesday (Oct. 8) for testing ahead of a planned launch of two NASA Mars probes.
Not all alphas: Mars crews should be a mix of personality types, study suggests
A new study indicates that crews with a wider range of personalities perform better under pressure, possibly informing how NASA selects and trains its astronauts for future missions to Mars.
Australian nanosatellite snaps 1st selfie in space before tracking cosmic gamma-ray bursts (photo)
Australia's SpIRIT nanosatellite has snapped its first "selfie" from space, marking a successful start to its mission.
Chinese space station astronauts feast on spicy lamb, mooncakes for mid-autumn festival (video)
The crew on the Chinese Tiangong space station enjoyed tasty treats for mid-Autumn festival while spending time looking at the Earth below them.
1,000 Martian dust devils! European orbiters track Red Planet's tiny tornadoes
Two decades of spacecraft images reveal more than 1,000 dust devils whipping across Mars at unexpected speeds, offering fresh insight into how wind and dust shape the Red Planet.
The Most Metal-Free Star Ever Observed is Found In Our Own Backyard
The Big Bang essentially created two elements: hydrogen and helium. It also produced tiny traces of lithium and a few other light isotopes, but in the beginning there was hydrogen and helium. All the other, heavier elements formed later, either in the cores of stars, through stellar collisions, or other astrophysical processes. Even now hydrogen and helium make up so much of the material world that astronomers refer to all other elements as metals. Dust in the wind, you might say.
New comet Lemmon could shine bright enough to be seen with the naked eye this October
This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and evening skies.
These are all of our favorite deals from Prime Day in October
Grab the best deals we have found across Lego, streaming, skywatching gear and cameras!
Watch Dune: Prophecy, Station Eleven and other Sci-Fi gems for less
HBO Max is a treasure trove of Sci-Fi shows and movies, and thanks to this Prime Day deal, you can save 25% on Max and Starz. From sandworms to deadites, you really can't go wrong with this deal.
Save big this Blocktober with the best last-minute Prime Day Lego deals
Whether you're building them now or putting sets away for the holidays, you can't have enough Lego. From Star Wars to Marvel, we've rounded up the best Prime Day Lego deals, but you'll have to hurry.
Blue Origin transports New Glenn booster to launch site ahead of Mars-bound mission
Blue Origin transported its New Glenn first stage booster, ‘Never Tell Me the Odds,’ from its facilities at Rocket Park to Launch Complex 36 at Cape Canaveral Space Force Station on Oct. 8, 2025. Image: John Pisani / Spaceflight Now
Blue Origin is one step closer to its second ever launch of its New Glenn rocket. On Wednesday morning, teams rolled the 189-foot-tall (57.5 m) booster from its faculties at Rocket Park near the Kennedy Space Center Visitor Complex to begin its journey out to Launch Complex 36 at Cape Canaveral Space Force Station.
In space, everyone can hear you scream: Why sound design was 'Alien: Earth's breakout star
How memorable sound effects elevated "Alien: Earth to the next level.
I can see these Prime Day telescope deals are still active but they won't last forever
These are the best telescope deals I have seen for Amazon's Prime Day in October, with huge savings across our favorite models.
Lego Grogu with Hover Pram is discounted ahead of next year's The Mandalorian movie, but not for long
Now is your last chance to save 30% and get the lowest price on the Lego Star Wars Grogu with Hover Pram set, as October Prime Day is soon coming to a close.
Get stunning views of the moon for less with $108 off this Celestron telescope
30% off for Prime Day, this Celestron Astromaster 130EQ is just what you need to capture the majesty of the moon, or zoom in on the breathtaking Orionid meteor shower.
Get a closer view of comet Lemmon and save money — 20% off the Celestron Inspire 100AZ
Amazon Prime Day in October is in its final day and this telescope deal on the Celestron Inspire 100AZ brings the price down to $304 — perfect for a better view of comet Lemmon.
Blue Origin launches 6 'Space Nomads,' including mystery passenger, on suborbital space tourist flight (video)
Blue Origin launched its 15th space tourism mission today (Oct. 8), sending six people on a brief trip to the final frontier.
Rogue World Found Gobbling Material at Unprecedented Rate
Astronomers discovered a small, free-floating object that’s accreting matter at a breakneck pace, suggesting that some planet-size worlds could form similar to stars.
