The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

The size of the sun in the sky appears about 4 percent smaller at aphelion than at perihelion, an effect that is too small to be noticed without precise instruments, Dr. Wasserman said.

As summer settles in and temperatures climb in the Northern Hemisphere, it’s impossible to forget just how much the sun ...

A new paper from Harvard's sometimes controversial physicist Avi Loeb has suggested that if we want to find advanced alien ...

World's largest digital camera observes cosmos, capturing detailed images of galaxies, asteroids, and stars changing ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

Astronomers have announced the discovery of A11pl3Z, a massive new interstellar object entering our solar system.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

New research shows how Mars may have undone its own habitability, while Earth stayed stable enough to support life.

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...