NASA’s New Horizons spacecraft is speeding towards Pluto for the first-ever flyby on July 14, 2015. Scientists are eager to collect data on the dwarf planet’s chemical and atmospheric makeup, and the Ralph spectrometer will do just that. Instrument scientist Dennis Reuter discusses Ralph, Pluto, and

This video zooms into the core of a rich star-birth region called the Lagoon Nebula, located in the constellation Sagittarius in the direction of our Milky Way galaxy’s central bulge.

The first American woman in Space talks about her historic flight on NASA's 50th anniversary. She flew aboard Space Shuttle Challenger in June 1983 on the STS-7 mission.

Jupiter has a lot going on, with massive storms, intense winds, auroras, and severe temperature and pressure extremes. The James Webb Space Telescope of NASA has now taken fresh images of the planet. Webb's Jupiter observations will provide scientists with much more information about Jupiter's inner...

The Double Asteroid Redirection Test spacecraft will deliberately crash into a near-Earth asteroid to try and knock it off course. Scientists at NASA and Johns Hopkins Applied Physics Laboratory hope the DART mission could help us save Earth from a catastrophic impact.

Flying from Orlando, FL the crew recorded on video rare footage of Discovery's final launch as it embarks on STS-133.

When Wylie Overstreet set up his telescope outside on a whim, he had no idea he would inspire awe in hundreds of strangers on the streets of Los Angeles, reminding them of their common humanity.

The spacecraft crashed into an asteroid the size of the Washington Monument. NASA’s DART spacecraft intentionally collided with an asteroid on Monday evening, in an attempt to alter the space rock’s trajectory. The mission tested technology that could help defend Earth against potential future aster

A photo taken by NASA’s Mars Reconnaissance Orbiter appears to show spiders walking across the surface of Mars, but, in this case, things do not always look as they appear.

Watch as NASA astronauts Christina Koch and Jessica Meir prepare tools necessary for their spacewalk duties outside of the International Space Station on Friday, October 18, 2019.