What we're learning about Arrokoth, formerly known as Ultima Thule
November 13, 2019, 12:30 p.m. by Michael d'Estries
NASA has released some initial results from the first-ever up-close flyby of a Kuiper Belt space rock.
Sun flashes jack-o'-lantern grin in uncanny NASA photo
October 28, 2019, 10:34 a.m. by Catie Leary
A spooky face emerges from the sun's corona in this image captured by NASA's Solar Dynamics Observatory.
Space affects women's and men's bodies in different ways
October 23, 2019, 9:53 a.m. by Lindsey Reynolds
From nearsightedness to bone mass, a trip to the International Space System has a notable effect on astronauts' bodies.
NASA's new spacesuits will take astronauts to the moon and Mars
October 16, 2019, 3:53 p.m. by Ben Bolton
They will evolve with technology as astronauts prepare for Mars.
NASA's new mission will spot killer asteroids before they sneak up on us
September 25, 2019, 8:28 a.m. by Christian Cotroneo
So far, detection has been alarmingly hit or miss.
12 spectacular images from NASA's Spitzer telescope
September 6, 2019, 3:15 p.m. by Katherine Butler
The telescope is so sensitive it can see objects optical telescopes cannot. Here are some incredible images it has helped capture.
5 reasons why the James Webb Space Telescope is such a big deal
August 29, 2019, 12:45 p.m. by Gerri Miller
The highly anticipated successor to the Hubble Space Telescope is scheduled to launch in spring 2021.
What's the difference between dark matter and dark energy?
August 29, 2019, 8:16 a.m. by Christian Cotroneo
Together, they account for 95 percent of our universe.