astrophysics
Apparently even NASA is wrong about which planet is closest to Earth
Three scientists publish a paper proving that Mercury, not Venus, is the closest planet to Earth.
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Stephen Hawking: “There is no God. No one directs the universe.”
Hawking, who died in March, answers questions like "Is there a God?" and "Is time travel possible?" in his final book, which is available today.
3 stunning ways Earth and spacetime could be destroyed
A well-known cosmologist comes out with very stark warnings about particle accelerators.
Major ingredient for life on Earth formed in deep space, claims new study
Researchers discover extraterrestrial origins of a chemical essential for human DNA and other cell processes.
What we learn when black holes do the tango
They're 3 billion light years away, but their collision can lead to answers to really big questions.
Neil deGrasse Tyson: Don’t believe the dark matter hype
There's something all of us—physicists included—are getting wrong about dark matter, says Neil deGrasse Tyson.
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Gravitational Wave Astronomy: When Stars Die, New Sciences Are Born
Get ready for a decade of scientific revelations. Thanks to gravity waves, we have a completely new way to explore the universe.
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5 min
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Neil deGrasse Tyson Explains Why We Have Dysfunctional Politicians
Astrophysicist and science educator Neil deGrasse Tyson reveals if he'd run for President and what he would do if elected.
What Has Astrophysics Done For You Lately?
What happens up there directly affects life down here. From star-gazing to quantum mechanics, astronomy is one of humanity's great thruster engines of innovation.
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What Shape Is the Universe?
Our universe is flat, geometrically. But what exactly does "flat" mean?
You Could You Be Surrounded by Tiny Black Holes and Not Even Know it
Each might be as heavy as an asteroid and as tiny as a decimal point.