Space
Explore the vast reaches of space and mankind’s continuing efforts to conquer the stars, including theories such as the Big Bang, the International Space Station, plus what the future holds for space travel and exploration.
The Zoo Hypothesis: Are Aliens Watching Us Like Animals in a Zoo?
Communicating With Aliens Is Hard. Communicating With Alien AI Could Be Harder
Could Dark Matter Spawn 'Shadow Life'?
What Is a Harvest Moon?
The Mysteries of Mercury Retrograde Unveiled: A Cosmic Phenomenon
A Comprehensive Guide to the Layers of the Earth
10 Best Ideas for Interplanetary Communication
How can the moon generate electricity?
How Terraforming Mars Will Work
What Really Happened to Yuri Gagarin, the First Man in Space?
Apollo 11 One Giant Leap For Mankind
How Sputnik Worked
Moon's Glass Beads Hold Billions of Tons of Water
Quiz: Apollo 11, the First Moon Landing
Who was James Webb?
The Fastest Fictional Spaceships
10 Fictional Spacecraft We Wish Were Real
How Lunar Rovers Work
Learn More / Page 21
GPS is great, but it's kind of Earth-centric. If we have our hearts set on traveling to distant planets and faraway stars, then it's time to come up with a new navigation system. NASA, of course, has an idea.
NASA's next generation of telescopes will collect 1,736 times more light than the Hubble and will penetrate the depths of the universe to see objects nearly as old as the Big Bang.
A new space race is on -- who will be the first to build a space hotel? One company has gathered 3 billion dollars to do just that. Find out what life in a luxury space hotel might be like.
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It's not uncommon for planets to wander alone through the universe like big, sullen teenagers. But how do they end up flying solo, and could they still harbor life?
A single pulsar is fascinating enough, but as a set, these rapidly rotating neutron stars help scientists figure out mysteries of the universe.
Relying on a collapsed star to power our lives on Earth might seem like a good solution to our energy crisis, but there's just one tiny problem: The process might be lethal.
Looking for water on faraway planets doesn't involve spotting rivers or oceans. Instead, scientists keep an eye out for what types of light a planet emits to figure out whether a planet might be life-friendly.
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It's not just NASA pros staring into the night sky. Lots of skilled amateurs are out there pointing their telescopes into the great beyond. But can the average space enthusiast actually make a critical discovery?
Precipitation does fall from the clouds of other planets, but it's a little more exotic than the rainwater we get here on Earth. Imagine sheets of methane, sulfuric acid and, yes, diamonds falling from the sky.
Leash your cheetah, buckle your seatbelt and tell Usain Bolt to take a knee. We're about to power through some of the speediest stuff this universe – both in the real world and in fiction – has to offer.
The August 2023 full moon is known as the sturgeon moon. This year, it's also a supermoon and will be followed by a blue moon at the end of the month!