The bizarre long-term dimming of Tabby's star — also known as Boyajian's star, or, more formally, KIC 8462852 — is likely caused by orbiting dust, not a "megastructure" built by advanced aliens, a new study suggests.
The first meeting of the United States' newly-revived National Space Council begins Thursday (Oct. 5) at 10 a.m. EDT (1400 GMT), and you can watch it live courtesy of the White House.
The United States is launching another spy satellite on a secret mission early Thursday morning (Oct. 5), and you can watch the liftoff live.
The first 360-degree video taken from open space is available for all to see.
Three scientists revealed humorous and touching reactions to discovering that they had received the 2017 Nobel Prize in physics.
Space.com sat down with two of the winners of this year's Nobel Prize in physics, Kip Thorne and Barry C. Barish, to ask them how it feels to win the award and what they hope to see with future gravitational-wave experiments.
Volcanoes on Mars are more than 1,000 times as old as similar volcanoes on Earth.
Feed and inspire a kid's thirst for space with these book picks by Space.com's writers and editors.
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.
Cosmic rocker Joe Satriani recruited Red Hot Chili Pepper's Chad Smith and Deep Purple's Glenn Hughes for his new solo album, "What Happens Next."
While it's true that we're made of star stuff, it would perhaps be more accurate to say that the universe is composed of numbers.
Gravitational waves are the "smoking gun" of the Big Bang. Predicted by Albert Einstein's theory of general relativity in 1916, a massive object like Earth distorts space-time around it like a bowling ball dropped on a trampoline.
If, in fact, a picture is worth a thousand words, then astronaut Terry Virts has volumes to say about the view from space.
Three scientists who were integral in detecting these so-called gravitational waves for the first time were awarded this year's Nobel Prize in physics this morning (Oct. 3).
SpaceX test-fired a previously flown Falcon 9 rocket Monday (Oct. 2) in preparation for a planned liftoff of the booster this weekend.
Ensign T. Virts likely won't be crossing paths with the USS Discovery; the retired NASA astronaut cameoed on "Star Trek: Enterprise," which takes place long before the new show "Discovery."
Chemicals that eventually formed the very first organisms on Earth may have relied on a liquid solvent other than water.
Congratulations and celebrations abound as Nobel Prize in physics is awarded to the three scientists who first detected gravitational waves.
Einstein would be pleased — but flabbergasted — to hear the details of humanity's first direct detection of gravitational waves, according to one of three new Nobel winners for the discovery.
Ancient Mars may have been warmed by bursts of methane trapped under its surface, a new study finds — which could help explain past episodes of warmer, wetter climate on the otherwise freezing Red Planet.