Final Delta IV Heavy Launch: Finale for a Rocket That Brings the Heat

The ignition of the Delta IV Heavy rocket is perhaps the most visually striking liftoff you’ll…

Last-Minute Strategies to See the Total Solar Eclipse on April 8

On April 8, a total solar eclipse will blot out the sun for roughly 4,200 miles…

As Space Threats Mount, U.S. Lags in Protecting GPS Services

The United States and China are locked in a new race, in space and on Earth,…

Overlooked No More: Henrietta Leavitt, Who Unraveled Mysteries of the Stars

This article is part of Overlooked, a series of obituaries about remarkable people whose deaths, beginning…

As Stellar Observations Improve, Earth’s History and Future Get Fuzzier

Regardless of what stock market analysts, political pollsters and astrologers might say, we can’t predict the…

Penumbral Lunar Eclipse: How and When to Watch

As the moon prepares to blot out the surface of our sun in two weeks, it’s…

NASA Is Recruiting a New Class of Astronauts

Do you dream of leaving the planet? NASA is looking for its next group of astronauts,…

A Space Rock Fell Into Sweden. Who Owns It on Earth?

The iron rock’s journey from the depths of space ended with a thud in a dense…

Dante Lauretta on Life After Asteroid Bennu and OSIRIS-REx

Last fall, a NASA spacecraft named OSIRIS-REx dropped a capsule containing more than 120 grams of…

A Total Solar Eclipse Is Coming April 8. Here’s What to Know.

On April 8, North America will experience its second total solar eclipse in seven years. The…