Neil Armstrong: First man on the moon By Elizabeth Howell Armstrong was the first human to step foot on the moon. He was also an accomplished engineer, test pilot and astronaut.
Venus: The hot, hellish & volcanic planet By Charles Q. Choi Venus is the brightest planet in our solar system, has a hellish atmosphere, and is covered in volcanoes. Learn more about planet Venus here.
Kathryn Sullivan: Spacewalker and Earth Explorer By Charlie Wood Few know the globe's nooks and crannies more intimately than Kathryn Sullivan — explorer and student of the sky and the sea.
2020 Full Moon Calendar By Tim Sharp, Kimberly Hickok The full moon happens once a month. Find out when.
Night Sky, January 2020: What You Can See This Month [Maps] By Chris Vaughan Find out what's up in your night sky during January 2020 and how to see it in this Space.com stargazing guide.
SpaceX: Facts About Elon Musk's Private Spaceflight Company By Elizabeth Howell SpaceX is a pioneering private spaceflight company that's been sending NASA's cargo to the space station since 2012.
Geminid Meteor Shower: Dust From an Asteroid By Elizabeth Howell The Geminids come from an asteroid, 3200 Phaethon, but scientists are still trying to figure out exactly how it sheds enough debris to produce the bright meteor shower.
Lunar Eclipses: What Are They & When Is the Next One? By Robert Roy Britt Lunar eclipses occur when Earth's shadow blocks the sun. There are three types; the most dramatic is a total lunar eclipse. Find out when is the next one.
Perseus Constellation: Facts About the Hero By JoAnna Wendel Perseus is one of the largest constellations and is home to one of the most famous stars in our sky.
Leonid Meteor Shower: Bright Fireballs in November By Elizabeth Howell The Leonids take place every year in November. Once a generation, it is possible for a storm of meteors to occur with a peak of about 1,000 an hour – or even more.
McDonald Observatory: Searching for Dark Energy By Elizabeth Howell McDonald Observatory, in West Texas, represents eight decades of progress in telescope technology and offers an extensive menu of public programs.
NASA's SOFIA Observatory: The Flying Telescope By Charlie Wood Flying at the very tip-top of Earth's atmosphere, SOFIA has almost as clear a view as space-based telescopes.
There's Something Strange Going On Inside Neptune By David Crookes , All About Space magazine Are planetary burps to blame?
Yerkes Observatory: Home of Largest Refracting Telescope By Steve Fentress The Yerkes Observatory is more than 120 years old and is most known for contributing to discoveries about stellar motion and cartography.
X-37B: The Air Force's Mysterious Space Plane By Mike Wall A look at the U.S. Air Force's unmanned X-37B space plane, which has flown four secret, long-duration missions in Earth orbit to date.
Green Bank Observatory: Pioneering Radio Astronomy By Tim Childers Home to the largest fully steerable telescope in the world, Green Bank Observatory has a long history of leading the world in radio astronomy.
