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'Incredibly exciting': NASA claims it's found the 'clearest sign' yet of past life on Mars
By Ben Turner published
NASA scientists have found more intriguing details on speckled Martian rocks spotted by the Perseverance rover. But bringing samples back to Earth will be key.

Confirmed! Black hole merger shows Stephen Hawking theory was right
By Elizabeth Howell published
Black holes get bigger as they merge, the LIGO Collaboration confirmed with a new observation that could finally prove a decades-old Stephen Hawking theory.

When is the fall equinox, and why does it happen?
By Jamie Carter published
On Monday, Sept. 22, day and night will be nearly equal in length as Earth's axis is side-on to the sun, officially beginning autumn in the Northern Hemisphere.

Asteroid Apophis flyby will be 'once in a millennium' opportunity for skywatchers and scientists
By Sharmila Kuthunur published
In 2029, asteroid Apophis will skim safely past Earth, where it will be visible to billions. For scientists, it's a once-in-a-millennium planetary experiment.

NASA spots bizarre 'turtle' on Mars
By Harry Baker published
NASA's Perseverance rover has photographed a peculiar rock formation that looks eerily like a turtle poking its head out from its protective shell.

Gigantic 'letter S' spotted on the sun just before a 'dark eruption' hurls a fiery shadow at Earth
By Harry Baker published
A giant S-shape structure, around 10 times wider than Earth, recently appeared in the center of the sun, moments before our home star unleashed an even larger plume of plasma that later crashed into our planet.

New photos of comet 3I/ATLAS reveal its tail growing before our eyes
By Harry Baker published
New images reveal interstellar comet 3I/ATLAS beginning to grow a signature tail as it zooms closer to the sun ahead of a close encounter with Earth this fall.
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