Scientists can't fully agree on what GJ504b actually is. It may be a massive planet or a brown dwarf, a mysterious class of ...

To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

Find out how Disclosure Day compares to Steven Spielberg's other sci-fi movies, like Jurassic Park and Minority Report, ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

The decision is a loss for a Chinese green card holder who was paroled back into the United States in 2012 as an alien "seeking admission" after a border officer discovered a pending state criminal ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

One of the UFO world's most outspoken skeptics has apologized to one of its most famous whistleblowers. Michael Shermer's ...

The discovery of 3I/Atlas made headlines worldwide with bizarre claims that it might be an alien spaceship distracting from ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be ...

The Boulder Garden proves that sometimes reality is stranger and more spectacular than fiction, with geological wonders that ...