Space

A draft paper by a Harvard scientist and the head of the Pentagon’s UFO office has raised the idea an alien mothership could be in the solar system, sending out tiny probes dubbed "dandelion seeds" to explore the planets within.

If at first you don't succeed, try, try again.

Nearly a half century after astronauts first visited the moon, it is once again a flash point for debates on how to safely, responsibly explore the solar system.

Signatures of neutrinos, or ghostly particles that rarely interact with others, were tentatively spotted in the Large Hadron Collider in 2021. Now, physicists have confirmed they are real.

The release of hydrogen from within 'Oumuamua may explain some of the interstellar object's strange behavior.

Within a month of the Big Bang, a second cosmic explosion may have given the universe its dark matter, new research suggests.

Scientists have found uracil, one of the key building blocks for RNA, on the 200 million-mile-distant asteroid Ryugu

The universe may be flat, but could still be shaped like a doughnut, weird patterns in leftover light from the Big Bang suggest.

Asteroid 2023 DZ2 will zip between Earth and the moon's orbit on March 25 and may be visible with the right telescope.

To the naked eye, the night sky reveals only one moon. But how many moons have ever orbited Earth?

Equinoxes would be physically impossible over a flat Earth, but that doesn't stop conspiracy theorists from trying to explain them.

Scientists have analyzed 30-year-old data from NASA's Magellan mission to Venus and detected the first-ever signs of volcanic activity on the planet, emanating from a giant crater called Maat Mons.

NASA's James Webb Space Telescope has snapped a picture of WR 124, a rare Wolf-Mayet star 30 times the size of our sun, ejecting a luminous cloud of cosmic dust.

Astronomers used NASA's Chandra X-ray Observatory to spot two pairs of gigantic black holes set for two separate, first-of-their-kind collisions.

An asteroid that was initially given 1-in-600 chance of wiping out an entire city on Valentine's Day 2046 is now expected to almost definitely whizz past us without incident.

A massive wall of falling plasma, known as a polar crown prominence, was recently captured in a stunningly-detailed new photo of the sun.

Simulations show that collisions between moons and planets may be a regular danger for possible extraterrestrial life.

A high-resolution camera mounted on NASA's Mars Reconnaissance Orbiter has snapped pictures of unusual, almost perfectly circular sand dunes on the Red Planet's surface.

Albert Einstein's theories of relativity have been proven to be true time and again in the more than 100 years following their publication.