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Too many satellites? Is Earth’s orbit headed for catastrophe?
Are there too many satellites? The growing number of satellites poses an under-regulated threat of disaster for spaceflight. But it's not too late to act!
February 20, 2026
John Glenn 1st American in orbit 64 years ago today
John Glenn became the first American to orbit Earth on February 20, 1962, 64 years ago today. His space capsule was called Friendship 7.
February 20, 2026
The most recent volcanoes on Mars were surprisingly active
Scientists studied orbital data of minerals from recent volcanoes on Mars and found they were more complex than they expected, with ongoing eruptions.
February 19, 2026
Milky Way and Andromeda held together by dark matter sheet
A new computer simulation shows the Milky Way and nearby galaxies are in a sheet of dark matter between 2 voids. Galaxies on the outside fly away from us.
February 18, 2026
Black hole belches radiation long after eating a star
A black hole has been spewing out powerful radio waves years after shredding a star, and it's expected to get brighter till 2027.
February 17, 2026
NASA says organics on Mars are hard to explain without life
NASA's Curiosity rover found complex organics on Mars, possibly remains of fatty acids. A new NASA study suggests they are difficult to explain without life.
February 17, 2026
Chelyabinsk meteor: February 15, 2013
On February 15, 2013, the Chelyabinsk meteor streaked across the sky over Russia - brighter than the sun - and then exploded.
February 15, 2026
Pale Blue Dot 36 years later: Earth in a sunbeam
February 14, 2026, is the 36th anniversary of the Voyager 1 image of Earth. Voyager was near Saturn when it took this image, now known as the Pale Blue Dot.
February 14, 2026
For you, Valentine. Heart photos from nature
This Valentine’s Day, we find so much to love in the many heart shapes right here on Earth and all the way out in remote spots of the universe.
February 13, 2026
Star dims for 9 months, likely due to giant ringed object
A star dims its light to less than 97% of its brightness for 9 months before re-brightening. How? Scientists think a giant, ringed object blocked its light.
February 13, 2026
