What Would Happen to You if You Were Exposed to Space?

We’ve all seen it in some form or another in science fiction movies: a character suddenly finds themself exposed, sans protective suit, to the vacuum of space. Maybe it was a crack in their suit or helmet, or they were caught in an open airlock, or they were sucked out of a hole in a spacecraft…

Take a Ride with Alan Shepard Aboard Freedom 7

On this day in 1961, May the 5th at 9:34 a.m. Eastern time, NASA astronaut Alan B. Shepard, Jr. became the first American to travel into space with the launch of his Freedom 7 vehicle atop a Mercury-Redstone rocket. Shepard reached an altitude of 116.5 miles during his 15-minute suborbital flight before splashing down in…

Voyager 1’s Famous Long-Distance Valentine

If you’re in love with space then you’ll fall head over heels for this: it’s a picture of Earth taken from the Voyager 1 spacecraft after it passed the orbit of Pluto back in 1990—on Valentine’s Day, no less. That image of our planet from almost 4 billion miles away inspired Carl Sagan to write his famous…

Seeds From Space: The Moon Trees of Apollo 14

On Feb. 9, 1971, Apollo 14 astronauts Alan Shepard, Jr., Stuart Roosa, and Edgar Mitchell returned to Earth, their command module Kitty Hawk splashing down in the Pacific Ocean at 21:05 UT (4:05 p.m. EST). They were recovered by the USS New Orleans (LPH-11) and returned to the U.S. by way of American Samoa. But the…

A Heck of a Leap: When Bruce McCandless Became the First Human Satellite

On Feb. 7, 1984, NASA astronaut Bruce McCandless II became the first “human satellite” when he tested the Manned Maneuvering Unit during STS-41B. Propelled via 24 small nitrogen-powered thrusters, the MMU allowed McCandless (who was instrumental in developing the Unit at Lockheed Martin) to travel freely through space. In the iconic photo above McCandless is seen floating against…

New Horizons Fine-Tunes Its Course for MU69

A little goes a long way—especially when you’re traveling 51,000 mph! On Feb. 1, 2017 NASA’s New Horizons spacecraft performed a 44-second thruster burn that adjusted its course by just under 1 mph toward its next target, the Kuiper Belt object 2014 MU69. “One mile per hour may not sound like much,” said mission Principal…

50 Years Later: What Happened to Apollo 1?

Today marks the 50th anniversary of one of the worst tragedies to befall NASA: the fire that ignited inside the Apollo 1 (Apollo 204) command module during a test at Kennedy Space Center, claiming the lives of primary crew astronauts Gus Grissom, Ed White, and Roger Chaffee. The event is solemnly remembered every January 27. “We didn’t…

Spaceflight Affects Everything: First Findings In from NASA’s Twins Study

The first preliminary findings have been announced from NASA’s Twins Study, which used the rare opportunity of having identical twin astronauts—Mark and Scott Kelly—agree to (actually it was their idea!) make “human guinea pigs” of themselves during Scott’s One-Year Mission aboard the Space Station in 2015–2016. The results comparing Mark on Earth to Scott in space show variations in nearly…