The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

If everything in our solar system formed from the same solar nebula, why do the planets have different compositions? Herbert WichTitusville, Florida To better understand why the planets have variable ...

More than a decade of data about the particles zipping around our sun can solve mysteries from the behaviour of individual ...

A newly confirmed exoplanet around a nearby sunlike star might be astronomers’ best chance yet to look for life beyond the ...

STARGAZERS are in for a treat this month as a rare planet parade falls in Andromeda galaxy season. “One of the best planet ...

The findings provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth and that these ...

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

HWO will be the first space telescope built to find potentially habitable planets and analyze their atmospheres for signs of ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...