I can calculate the motions of the heavenly bodies, but not the madness of people

— Sir Isaac Newton


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Updated: 2 hours 25 min ago

Space Calendar 2017: Launches, Sky Events & More

3 hours 30 min ago
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecrafts already in travel.
Categories: Astronomy

Image of the Day

3 hours 58 min ago
This may look like a nebula in deep space, but this glowing cloud was photographed in Earth's atmosphere. The photo was taken shortly after a SpaceX Falcon 9 rocket launched with 10 Iridium communications satellites.
Categories: Astronomy

Best Space Books for Kids

4 hours 7 min ago
Feed and inspire a kid's thirst for space with these book picks by Space.com's writers and editors.
Categories: Astronomy

Orionid Meteor Shower 2017: When, Where & How to See It This Weekend

5 hours 19 min ago
Some of the brightest and swiftest shooting stars will bedazzle the night sky this year during the Orionid meteor shower, which will peak between Oct. 20 and 22 and continue through early November.
Categories: Astronomy

S.S. Gene Cernan: Space Station Resupply Ship Named for Last Man on the Moon

6 hours 43 min ago
The last human to step off the moon is the latest astronaut to be memorialized with the naming of a space station-bound cargo ship.
Categories: Astronomy

Newfound Bus-Size Asteroid Will Zoom Safely By Earth Today

7 hours 5 min ago
The newfound asteroid 2017 TD6 will give Earth a close shave on Oct. 19, 2017, when the object flies by Earth at an estimated 119,000 miles away.
Categories: Astronomy

Space Gardening May Treat Astronauts' Blues

7 hours 8 min ago
Many people step into their home gardens for a bit of DIY therapy. A new study suggests that astronauts could also reap the psychological benefits of gardening.
Categories: Astronomy

Moon Express and NanoRacks Partner on Lunar Payloads

Wed, 10/18/2017 - 12:48pm
Commercial lunar lander company Moon Express announced an agreement with NanoRacks Oct. 10 to carry commercial payloads to the surface of the moon.
Categories: Astronomy

Companies Seek Roles in NASA's Return to the Moon

Wed, 10/18/2017 - 12:48pm
As NASA develops a plan to carry out a new administration policy calling for a human return to the moon, companies developing lunar landers and related infrastructure are seeking to play a role.
Categories: Astronomy

How Far is Earth from the Sun?

Wed, 10/18/2017 - 10:46am
The answer is one 1 astronomical unit. How far is that?
Categories: Astronomy

Could the Hunt for Hubble's Constant Overturn the Standard Model of Cosmology?

Wed, 10/18/2017 - 10:40am
Two methods that scientists use to measure the expansion of the universe produce different answers. A recent episode of NASA's ScienceCasts video series explores this conundrum.
Categories: Astronomy

How Hot Is the Sun?

Wed, 10/18/2017 - 10:38am
Heat and light from the sun make life on Earth possible.
Categories: Astronomy

Watch a NASA Rocket Launch a Supersonic Parachute for Mars Landings

Wed, 10/18/2017 - 8:00am
NASA will launch a small rocket from Virginia's Eastern Shore early Wednesday (Oct. 4) to test a supersonic parachute system for future spacecraft bound for Mars. The launch may be visible to observers along the U.S. East Coast, weather permitting.
Categories: Astronomy

Caught In the Act! Five Black Hole Couples Found Merging (Videos)

Wed, 10/18/2017 - 7:27am
Astronomers have pinpointed five pairs of merging black holes using three different space and ground-based instruments and two sky surveys.
Categories: Astronomy

How Fit Will Astronauts Be After Years in Space?

Wed, 10/18/2017 - 7:25am
After spending months or years in space during future long-term missions, returning to Earth can be challenging for astronauts — and one set of researchers is finding out just how challenging using a life-size spacecraft model.
Categories: Astronomy

In Images: The Amazing Discovery of a Neutron-Star Crash, Gravitational Waves & More

Wed, 10/18/2017 - 7:13am
For the first time ever, scientists around the world detected gravitational waves and light from the collision of a pair of neutron stars. See the epic discovery in pictures here.
Categories: Astronomy

'Women of NASA' Lego Set to Launch for Sale Nov. 1

Wed, 10/18/2017 - 7:05am
Four trailblazing figures from NASA's history are set to launch as new Lego minifigures. As-tronauts Sally Ride and Mae Jemison, as well as programmer Margaret Hamilton and astrono-mer Nancy Grace Roman, feature in the Lego Ideas set, "Women of NASA."
Categories: Astronomy

Orbital ATK Eyes Investments in Advanced Rocket Motors

Wed, 10/18/2017 - 6:41am
A new market for super high-speed weapons is fueling investments in rocket engine technologies as companies seek to gain an edge.
Categories: Astronomy

General Atomics Ramping Cubesat Production, Muses Railgun Smallsat Launcher

Wed, 10/18/2017 - 6:33am
General Atomics is better known for building Predator combat drones and mining uranium than building spacecraft, but that could change as the company develops an interest in building defense-focused cubesats.
Categories: Astronomy

Neutron-Star Collision Reveals Origin of Gold, Astronomers Say

Tue, 10/17/2017 - 12:02pm
An international team of astronomers detected the first gravitational waves from merging neutron stars, and found proof they are the source of the universe's heavy elements, including gold and platinum.
Categories: Astronomy