Science

a large radio antenna with a crowd of people below

Aliens? It's, once again, never aliens.

Radio signals keep coming from deep space. Here's what they really are.

It'll be safe, engineers say. How a NASA nuclear rocket engine could unleash the solar system
Longer than California An enormous Martian cloud returns every spring. Scientists found out why.
The size of Florida Scientists just spotted unnerving melting beneath the 'Doomsday Glacier'

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Latest

An octopus captured on camera during recent deep sea expedition. Scientists find stunning new octopus world in the deep sea
The James Webb Space Telescope captured imagery of some of the deepest, and most ancient, galaxies in the universe. Spectacular Webb telescope image reveals things scientists can't explain
a view into a crater on Mars NASA's new Mars video is astonishing
A close-up of the surface of the sun. 15 mesmerising astronomy photos that will transport you to space
the James Webb Space Telescope capturing the Orion Nebula Webb telescope just found something unprecedented in the Orion Nebula
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Videos

A still image showing a main road in New Delhi in the heat. Caption reads: "heat relief"
How can India prepare its cities for severe heatwaves?
Satellite images show a piece of land before and after the flood caused by the dam's collapse.
Satellite images show colossal damage from Ukraine's destroyed Kakhovka dam
Aerial shot of the Empire State Building vailed in a cloud of yellow-ish smoke. Caption reads: historic pollution
New York air quality is the world's worst due to Canada wildfire smoke
An illustration of a brain seen from above against a red futuristic backdrop. Caption reads: AI MIND READING.
AI is getting better at reading our minds
SpaceX's SLS rocket stands ready to launch.
How to watch the SpaceX Starship launch livestream
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Deals

Discounted Celestron telescopes overlayed on a background of stars and galaxy
Tap into your inner astronomer with Celestron telescopes on sale
Screenshot from The Roman Space Observer Game
NASA has released an retro arcade game about the Nancy Grace Roman Telescope
Make sure water is safe for your dog to play in with this quick and easy blue-green algae test
Make sure water is safe for your dog to play in with this quick and easy blue-green algae test
Pamper your pet with free same-day delivery at Petco when you spend over $35
Pamper your pet with free same-day delivery at Petco when you spend over $35
5 on-sale space heaters that can keep you warm and reduce your bill this season
5 on-sale space heaters that can keep you warm and reduce your bill this season
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Features

At last, we can build a Space Elevator — sort of At last, we can build a Space Elevator — sort of
How a coin for carbon could save the planet How a coin for carbon could save the planet
Why it's impossible to forecast the weather too far into the future Why it's impossible to forecast the weather too far into the future
Welcome to Cloud City: The case for going to Venus, not Mars Welcome to Cloud City: The case for going to Venus, not Mars
Coronavirus and the indoor farming revolution Coronavirus and the indoor farming revolution
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