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'Killer electrons' play pinball with space weather around Earth
By Robert Lea published
"Killer electrons" stashed in radiation belts around Earth could be dislodged by lightning to create a game of "cosmic pinball" that influences space weather around our planet.
4 large asteroids, including a skyscraper-size 'city killer,' will zoom past Earth in a 12-hour span tomorrow (Oct. 24)
By Harry Baker published
Four "potentially hazardous" space rocks, which are between 100 and 580 feet across, will all make their closest approaches to Earth within less than 12 hours of one another on Thursday (Oct. 24). Two of them were only discovered earlier this month.
Boeing-made satellite shatters in orbit, and nobody knows why
By Ben Turner published
Intelsat 39 being launched from French Guiana aboard an Ariane 5 rocket in 2019.
Watch huge fireball blaze over Lake Erie in stunning videos
By Sascha Pare published
A fiery meteor shot across the sky above the Great Lakes on Monday (Oct. 21) just after sunset, stunning witnesses from Michigan to New York, Kentucky and North Carolina.
How old is planet Earth?
By Briley Lewis published
How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.
Euclid telescope reveals 1st section of largest-ever 3D map of the universe — and there's still 99% to go
By Ben Turner published
The first piece of the Euclid space telescope's map of the universe is crammed with 14 million galaxies and 100 million sources of light. The mapping project is now 1% done.
Tiny photosynthetic aliens could be lurking in hidden bubbles in Mars' ice — and could soon be replicated on Earth
By Harry Baker published
A new NASA-led study suggests that photosynthetic microbes could thrive in hidden bubbles of meltwater below patches of ice on Mars. This could be one of the easiest places to search for extraterrestrial life "anywhere in the universe," the team says.
How many moons does Jupiter have?
By Joanna Thompson published
How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems.
James Webb telescope discovers 'inside out galaxy' near the dawn of time
By Ben Turner published
A bright spiral galaxy appears on a background of thousands of other distant galaxies
'Lost in insignificance': Here's what it's like to rappel into the solar system's largest canyon
By John E. Moores, Jesse Rogerson published
"You wanted this moment to belong just to yourself and the landscape: sunset on the rim of Valles Marineris, the largest canyon in the solar system."
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