Two-and-a-half months after cosmonaut Alexey Leonov became the first human to walk in space, NASA astronaut Ed White floated out of his cramped Gemini 4 capsule 50 years ago Wednesday to become the first free-flying American in orbit.
The dwarf planet Pluto may be more than 3.6 billion miles away from the sun, but it’s certainly not alone.
Halley’s Comet ‘Eta Aquarids’ Meteor Shower Peaks Overnight, Best Viewing Wednesday Morning Before Dawn
Halley’s Comet may be on the other side of the solar system, but debris from its trail hit Earth every May as the planet passes through its orbit, and the best viewing of the “Eta Aquarid” meteor shower will be just before dawn on Wednesday May 6th, 2015.
In a meta moment science nerds can only dream of, astronauts at the International Space Station watched Stars Wars Monday to celebrate May The Fourth.
Sound from space captured by microphones aboard a NASA student balloon experiment has scientists baffled.
Russian Drone Space Freighter Out Of Control, Out Of Communication After Launch Toward Space Station
A Russian drone space freighter is out of control and out of communication after launching toward the International Space Station with 6,000 pounds of fuel, oxygen, water, and other supplies.
Don’t bother looking up but Astronaut Scott Kelly aboard the International Space Station just snapped our picture.
Hubble, the world’s first space telescope, was launched April 24, 1990 aboard the space shuttle Discovery. Here are 25 of our favorite images from Hubble’s amazing — and continuing — quarter-century mission.
Earth Day is just around the corner, so we rounded up some of the most beautiful photos and images of our planet taken from space.
A UC Santa Cruz college issued an apology for insensitivity after Mexican food was served during an intergalactic-themed school party, prompting complaints from students.