10 spectacular images from NASA's Spitzer telescope
Unique viewpoint NASA calls Lyman Spitzer Jr. (1914-1997) one of the 20th century’s greatest scientists. The longtime Princeton astrophysicist lobbied for a large space telescope as early as 1946, work that culminated in the launch of the Hubble Space Telescope…
Send your name to Mars
Want to send your name to Mars on NASA’s next rover mission in 2020? You’ll get your name etched on a microchip affixed to the rover – and a souvenir boarding pass. Here’s how.
Why we need to worry about ozone again
In an effort to stop the widening of a hole in the ozone layer, the international community banned the use of ozone-destroying chemicals through the Montreal Protocol, first signed in 1987. The treaty has had a sizable impact on preserving…
New evidence for Plutoâs subsurface ocean
Does Pluto have an ocean? That idea seems preposterous at first, but a new study adds to the growing evidence for a subsurface ocean on this distant dwarf planet … and explains how it stays liquid.
Why the moonâs near and far sides look different
New research suggests that a wayward dwarf planet collided with the moon in the early history of the solar system, causing the stark difference between the moonâs heavily-cratered far side and the lower-lying open basins of its near side.
What Changâe 4 learned from the moonâs far side
Early results from China’s historic 1st landing on the moon’s far side. Chinese scientists have used in situ data from a far side crater to identify materials on the moon’s surface that originated deeper inside the moon.
See Beresheet spacecraftâs impact site on moon
NASA released before and after images of the spot on the moon where Israelâs Beresheet spacecraft crash-landed on April 11.
Scientists find new periodic water cycle on Mars
A new study shows that Mars has a unique water vapor cycle that occurs only once about every 2 years. The cycle might help explain how Mars lost most of its water.
Close encounter sets galaxy ablaze with new stars
A cosmic collision in action. Read more about what happens when 2 galaxies sideswipe each other.
Something very big and very dark punched a hole in our galaxy
Somewhere along the way to charting the most detailed 3D map of our galaxy ever, the Gaia project hit a snag. Literally. Something had blown a massive hole in the Milky Way. Ana Bonaca of the Harvard-Smithsonian Center for Astrophysics…
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