NASA’s James Webb Space Telescope finds TRAPPIST-1 d lacks an Earth-like atmosphere, narrowing the search for habitable planets.

On Aug. 20, 1977, NASA launched the Voyager 2 spacecraft on a mission to explore the outer planets. Despite its name, this ...

What is the difference between a moon and a planet?Trick question! According to scientific definitions, there often isn’t much of a difference at all. That might seem counterintuitive, but it’s true.

Jupiter, Mercury, Neptune, Saturn, Uranus and Venus will be visible in the early morning skies over America from Sunday, Aug. 17, to Wednesday, Aug. 20. FOX 5's Liv Johnson reports.

Reaching the darkest depths of the sea was important because of how scientists, including Campbell, believe that life may exist below the icy surface of seas on other planets. In recent years, experts ...

A New Mexico State University astronomer has discovered a gap in planet sizes that could provide insights into planet formation and the universe's origins.

Pictures are the key to new insights in the field of astrophysics. Such images include simulations of cosmic events, which ...

The Solar System has a total of 419 known moons around planets. If we count dwarf planets, asteroids, and other worlds, the count more than doubles. The "known" in known moon is the important part, ...

How do tidal forces shape a planet's orbital evolution, especially for those in the habitable zone? A recently submitted ...

Leaving for college isn't just a massive change in a child's life; it also can transform the day-to-day life of parents. We ...

A study published in The Astrophysical Journal reveals that the third planet from the star TRAPPIST-1 does not have an ...

Over millions of years, Uranus’s inner moons may have collided and spread out into rings. As the material in the rings diffused, they moved farther away from the planet. Eventually, that material can ...