NASA scientists estimate Tonga blast at 10 megatons
Researchers who have been studying the volcano since 2015 say it was likely caused by seawater flowing into a chamber filled with magma.
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Who gets to use NASA's James Webb Space Telescope? Astronomers work to fight bias
With the James Webb Space Telescope safely deployed, many scientists want to use it. To minimize the effect of unconscious biases, they go through a process developed for the Hubble Space Telescope.
NASA's James Webb telescope completes its final unfolding in space
Considered the most powerful telescope in space, the James Webb telescope has completed its deployment process. It will still be five months before it will start picking up images.
Zero-gravity ballet: James Webb Space Telescope deploys sunshield and mirror
NASA's James Webb Space Telescope successfully deployed its secondary mirror Wednesday after unfolding its enormous sunshield a day earlier.
Why some astronomers once feared NASA's James Webb Space Telescope would never launch
NASA's James Webb Space Telescope is waiting at its launch site, after years of repeated delays and cost overruns. At one point, the giant new observatory was threatened with cancellation.
This new space telescope should show us what the universe looked like as a baby
The upcoming launch of NASA's powerful James Webb Space Telescope should let astronomers see what some of the universe's first stars and galaxies looked like soon after the Big Bang.
Astronomers find a new planet that's mostly made of iron
NASA's TESS telescope finds a small, iron-rich planet which could help explain the origins of Mercury, the innermost planet in our solar system
In a first test of its planetary defense efforts, NASA's going to shove an asteroid
NASA is about to launch the first mission of its new planetary defense office. A spacecraft will attempt to knock a small asteroid off course by ramming into it.
NASA says it can't put the first person of color on the moon until at least 2025
NASA's leaders say an overly aggressive timeline from the Trump administration and a legal fight over a contract are two reasons why it's altering plans for the Artemis lunar program.
In Jupiter's swirling Great Red Spot, NASA spacecraft finds hidden depths
NASA's Juno spacecraft sweeps over Jupiter's Great Red Spot and makes a 3D map of the giant storm. The findings could shed light on gas giant exoplanets in distant solar systems.