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
UFOs and the Government
The Largest Star in the Universe Is 1,700x Bigger Than Our Sun
What Is a Harvest Moon?
The Mysteries of Mercury Retrograde Unveiled: A Cosmic Phenomenon
What Is a White Hole? Does the Cosmic Phenomenon Exist?
10 Best Ideas for Interplanetary Communication
How can the moon generate electricity?
What Really Happened to Yuri Gagarin, the First Man in Space?
Apollo 11 One Giant Leap For Mankind
What is it like to sleep in space?
Quiz: Apollo 11, the First Moon Landing
Who was James Webb?
10 Space Landmarks We'd Like to Visit
The Fastest Fictional Spaceships
10 Fictional Spacecraft We Wish Were Real
How Lunar Rovers Work
Learn More / Page 12
Move over Saturn. There are other planets in the solar system surrounded by ring systems.
By Mitch Ryan
Gliese 581c was one of the first "Earth-like" planets found, back in 2007. It generated a lot of excitement then but what about now?
Surprisingly, the solar system isn't odorless — it has a distinct scent that some astronauts like and others think is stinky. So, what does it smell like and why?
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Do you love looking at beautiful pictures of the night sky? How do space photographers get those shots? And could you join their ranks?
And this month's buck moon is extra-special because it is a supermoon!
Recently, there's been a spike in UFO sightings — officially UAP, or Unidentified Aerial Phenomena — all over the world and nobody seems to know why or what the objects we're seeing might be.
Amazon CEO Jeff Bezos and his brother plan to blast into space next month. But even if you're not related to a billionaire, you can still experience the fun of space at a 'down-to-Earth' price.
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Yep, two small-bodied Russian tortoises made it to the moon and back before man did.
By Mark Mancini
The Chinese space station Tiangong, now with its first crew of astronauts, is scheduled for completion in 2022. What does that mean for the future of the aging International Space Station and multinational space cooperation?
On July 20, 2021, Wally Funk will blast off. Her trip to space has been delayed since 1961, when the 'Mercury 13' Woman in Space Program was cancelled.
Today, Blue Origin flew its billionaire founder Jeff Bezos and three others into space, a week after Virgin Galactic flew its billionaire founder Richard Branson on the same mission. Will space tourism be more than a millionaire's hobby?
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After Viking 1 captured images of what looked like a face on Mars, the public began to speculate. Had Martians carved a colossus, or was there another answer?
Foo fighters have been reported by fighter pilots since World War II. Were they with the Axis or Allies, or maybe from another planet? Read more about reports of foo fighters and censorship of foo fighter sightings.
The RB-47 UFO incident of 1957 was classified for years after it happened. Read how an RB-47 planed encountered two UFOs over Mississippi and Texas.
In 1964, police officer Lonnie Zamora saw an egg-shaped UFO in Socorro, New Mexico -- and the pilots. The encounter was so incredible that government nvestigators from the secret Project Blue Book even came to investigate.
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Astronomer and defense researcher J. Allen Hynek is behind the UFO sighting classification system based on "close encounters." So what is a close encounter and have you had one?
By Suzie Dundas
Many people have reported alien abduction stories. Most of the abductees have shared their stories through hypnosis -- which causes wide disagreement about their validity. Read more about alien abductions.
By the Editors of Publications International, Ltd. & Desiree Bowie
The Ronald Reagan UFO sighting occurred in 1974 while Reagan was flying to Bakersfield, California. Reagan told a reporter afterwards, but hasn't discussed the event since. Learn more about the Ronald Reagan UFO sighting.
In 1952, angel hair came drifting from the sky, falling over the French towns of Oloron and Gaillac. The short life of angel hair makes it difficult to analyze. Learn more about the history of angel hair UFOs.
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The North Hudson Park UFO appeared as George O'Barski was driving. The ship landed and 10 figures appeared, exited the craft, dug holes in the ground, and took off again. Read more about the North Hudson Park UFO.
The 1979 Minnesota UFO severely damaged the car of Sheriff Val Johnson while he was investigating a plane crash. What happened, and why did all the clocks start running 14 minutes behind?
The 1973 Missouri UFO brought James Richard out of bed and to his window, where he saw the UFO hovering in the trees outside. Learn about the 1973 Missouri UFO sighting.
Space food has come a long way from Project Mercury's paste-filled tubes. Today's astronauts select menus that include everything from macaroni and cheese to brownies. So do astronauts really eat space ice cream?
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In 1965, the Valensole UFO landed near Maurice Masse's workplace, and two figures exited the ship. One of them pointed a device at Masse and paralyzed him. Learn more about the Valensole UFO encounter.
The Cash-Landrum UFO incident left Betty Cash and Vickie Landrum with severe illness and lifelong injuries. The effects of the incident were very similar to radiation poisoning. Read about the Cash-Landrum UFO incident.