After 45 Days, Volunteers Emerge From Most Realistic Mars Simulation Yet

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NASA Hera Mission Crew

NASA Postpones Upcoming Mars Mission, Citing Delays With Bezos’s Big Rocket

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New Glenn Integrated Tank Test Roll Out 05

Meet the world's 10 richest women who are jointly worth about $500 billion — almost as much as ExxonMobil

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Alice Walton
Alice Walton's net worth is $95 billion.

Stefanie Keenan/Getty Images

Mars is buying the maker of Pringles and Cheez-It for almost $36 billion

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Pringles
Kellanova owns brands including Pringles.

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Watch Mars and Jupiter Appear to Almost Touch in a Rare Conjunction

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An image of Jupiter and Mars in conjunction morning of October 20, 2015.

Another point for life on Mars: Signs of liquid water discovered under the planet's surface

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InSight mars lander
An artist illustration of NASA's InSight lander on Mars.

NASA/JPL-Caltech

Martian Tremors Provide Strongest Evidence Yet of Liquid Water

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Selfie taken by Mars InSight lander

How to see the year's best meteor shower this weekend, with fireballs, colorful trails, and a Jupiter-Mars conjunction

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night sky with meteors shooting stars bright white streaks and one extra bright fireball above a rocky hillside of evergreen trees
The Perseids meteor shower, known for its fireballs and bright tails.

NASA/Preston Dyches

Elon Musk has a weak case against advertisers — but he's playing the long game

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Elon Musk
Elon Musk's X is suing an advertising group and some of its members.

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NASA just scored a badly needed win: The best potential evidence of alien life yet

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gritty yellow ring with speckled solid rock sample inside
The Cheyava Falls rock sample inside Perseverance's drill bit.

NASA/JPL-Caltech/ASU/MSSS

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