Vast Oceans of Water May Be Hiding Within Uranus and Neptune
A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange magnetic field.
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A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange magnetic field.
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Scientists simulated a situation that may offer an improved explanation for how the Red Planet ended up with small Phobos and tiny Deimos.
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Astronomers zoomed in on a stellar behemoth in the Larger Magellanic Cloud, a galaxy that orbits about 160,000 light-years from the Milky Way.
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President-elect Donald J. Trump joined Elon Musk, as his company’s prototype moon and Mars rocket carried out a sixth test flight that showed a mix of progress and setbacks.
By Katrina MillerErica L. Green and
SpaceX Starship’s Sonic Boom Creates Risk of Structural Damage, Test Finds
An independent researcher found that noise recorded miles away from the site of a recent test flight was equal to standing 200 feet from a Boeing 747 during takeoff.
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NASA Says Space Station Astronaut Is in ‘Incredible Health’
The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an extended stay in orbit.
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Uranus Might Have Experienced a Freak Event When Voyager 2 Visited
Much of the understanding of the seventh planet comes from a brief flyby nearly 40 years ago, which researchers now say overlapped with an exceptional solar event.
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Elon Musk Helped Elect Trump. What Does He Expect in Return?
The world’s richest man gave his money and time in campaigning for the president-elect and now is putting in his requests for a friendlier regulatory environment.
By Eric LiptonKirsten GrindDavid A. Fahrenthold and
Japanese Scientists Bet on an Ancient Material for Their New Satellite: Wood
Scientists in Japan constructed the first satellite made of wood by blending age-old woodworking techniques with rocket science.
By John Yoon and
Elon Musk’s SpaceX, Already a Leader in Satellites, Gets Into the Spy Game
The Pentagon needs what the company offers to compete with China even as it frets over its potential for dominance and the billionaire’s global interests.
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Space: The Final Fashion Frontier
Prada and Axiom Space unveiled their NASA spacesuits, in the most far-out collaboration yet.
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NASA Launches Europa Clipper to Explore an Ocean Moon’s Habitability
The spacecraft lifted off Monday on a SpaceX Falcon Heavy rocket, embarking on a nearly six-year journey to Jupiter.
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Scientists Seeking Life on Mars Heard a Signal That Hinted at the Future
In 1924, a radio receiver built for the battlefields of World War I tested the idea that humans were not alone in the solar system, heralding a century of searches for extraterrestrial life.
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Sync Your Calendar With the Solar System
Never miss an eclipse, a meteor shower, a rocket launch or any other astronomical and space event that’s out of this world.
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Highlights From the Total Solar Eclipse’s Dark Path Through the U.S., Mexico and Canada
People all over North America spent the afternoon awed by the movement of the moon’s shadow, the last time it will pass through so much of the continent until the 2040s.
The Eclipse Across North America
What people in the path of totality were seeing and saying as the eclipse unfolded across the continent.
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See the Total Solar Eclipse’s Shadow From Space
An American weather satellite is capturing the movement of the moon’s shadow across North America during the total eclipse of the sun on Monday.
By K.K. Rebecca Lai and
Fjords, Pharaohs or Koalas? Time to Plan for Your Next Eclipse.
If you can’t get enough of totality, or missed out this time, you’ll have three more chances in the next four years in destinations like Iceland, Spain, Egypt and Australia.
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Did You Really Need to Be There to See the Eclipse?
For much of the 20th century, Rochester, N.Y., was the “imaging capital of the world.” For three and a half minutes on Monday, it was living up to its old nickname.
By Christopher Valentine and
Barnard’s Star Finally Has a Planet, and Possibly More
For a century, exoplanet hunters have “discovered” planets around a nearby star, only to retract the claims. But the latest find is for real.
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Two Black Holes Are Giving the Cosmos a Fright
The ghosts of stars are up to their usual mischief.
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This Black Hole Has a Cosmic Wingspan
Astronomers have discovered a black hole emitting energy in jets longer than the width of 140 Milky Way galaxies.
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It’s Lights Out at a Cosmic Restaurant
Palomar Observatory bids farewell to a tradition of napkin rings, cowbells and astronomical table conversation.
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Watch These Supernovas Explode Across Time
For the 25th anniversary of the Chandra X-ray Observatory, NASA produced ghostly time-lapse videos of two centuries-old stellar eruptions.
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President-elect Donald Trump joined Elon Musk in Texas and watched the launch from a nearby location on Tuesday. While the Starship’s giant booster stage was unable to repeat a “chopsticks” landing, the vehicle’s upper stage successfully splashed down in the Indian Ocean.
By Jamie Leventhal
The president-elect’s decision to witness the liftoff is another example of his close ties to the world’s wealthiest entrepreneur.
By Michael Gold and Theodore Schleifer
The event produces some of the year’s fastest meteors, although the nearly full moon may make them challenging to spot.
By Katrina Miller
The cube-shaped satellite was launched aboard a SpaceX rocket late Monday to test if timber will work as a more sustainable material in space.
By Nader Ibrahim and Shawn Paik
This short trivia quiz tests your knowledge of fiction and nonfiction works that were made into popular films about space exploration and the quest to connect with other worlds.
By J. D. Biersdorfer
As chair of the White House’s National Space Council, the vice president largely emphasized continuity with policies set by the Trump administration.
By Kenneth Chang and Katrina Miller
Forecasters will soon be able to use the instrument, a coronagraph, to better monitor the effects of solar storms.
By Katrina Miller
Three NASA astronauts and a fourth from the Russian space agency returned to Earth from the International Space Station on Friday morning in a SpaceX capsule.
By Kenneth Chang
Astronomers offered a new hypothesis for what created pairs of objects nicknamed JuMBOs, while other scientists argue they may not really exist.
By Jonathan O’Callaghan
Mr. Musk, who holds billions in federal contracts, wants to be in charge of the regulators that oversee him if Donald Trump wins.
By Eric Lipton, David A. Fahrenthold, Aaron Krolik and Kirsten Grind
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