Space.com recently caught up with Melvin to chat about his life, his spaceflight experiences and what he hopes to teach all the youngsters out there.
SpaceX just launched its 100th successful mission, and the company put together an action-packed video to mark the milestone.
Tune in to "The Virtual Astronaut" talk with Dottie Metcalf-Lindenburger on Oct. 27 at 7 p.m. EDT (2300 GMT).
The moon has more hidden pockets of water ice than previously thought, NASA's SOFIA flying observatory reveals.
NASA will hold a teleconference today, Oct. 26, to reveal a new discovery about the moon from its SOFIA flying observatory.
Galaxy NGC 2799 (on the left) and galaxy NGC 2798 (on the right) form a "galactic waterfall," which stands out in this image snapped by the Hubble Space Telescope.
NASA wants you to get excited about the moon — or more specifically, about a mysterious new science result the agency plans to unveil on today (Oct. 26).
NASA is choosing between human missions to the moon and a robotic mission to Jupiter's icy moon Europa as the agency manages its limited supply of megarockets in the coming years.
What is creating the bubbling, gaseous atmosphere on Jupiter's moon Io? Scientists think they finally have the answer: volcanoes.
These fields are generated thousands of kilometres below the planet’s surface in its liquid core and extend far into space – shielding the atmosphere from harmful solar radiation.
On Oct. 26, 2004, NASA's Cassini spacecraft took the first close-up images of Saturn's largest moon Titan. See how it happened in our "On This Day In Space" series!
An innovative artificial intelligence (AI) tool developed by NASA has helped identify a cluster of craters on Mars that formed within the last decade.
Scientists have measured the shortest unit of time ever, the time it takes for a particle of light to cross a hydrogen molecule.
SpaceX successfully launched its latest fleet of Starlink internet satellites into orbit Saturday (Oct. 24), marking the second such mission this week.
As entrepreneurs spend billions on space, there is a backlash building that holds their projects as icons of extravagance, even as they may help save the Earth. This is the "Elysium effect."
A new computer reconstruction of the tectonic plates of 60 million years ago reveals the existence of a lost plate called Resurrection.