There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

Beginning Nov. 25, 2025, Mercury will be far enough west to peek above the horizon just before sunrise. Venus will also be naked-eye-visible as a bright point of light but you’ll want a telescope or a ...

This month, if you should incline your head slightly upwards at night, you will receive a treat in the form of six of the eight planets visible in the skyline. Mercury, the closest planet to the Sun ...

Such events are called conjunctions, and they take place when, from Earth’s perspective, two objects in the sky seem to line ...

The interstellar comet 3I/ATLAS will make its closest pass to the sun on Oct. 30, and various spacecraft will be watching, seeking clues about the icy wanderer's chemistry and composition.

Astronomers have discovered a planet orbiting the closest solo star to the solar system, known as Barnard's star. The newly discovered exoplanet has around half the mass of Venus, which classifies it ...

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have ...

There's an exoplanet whipping around Barnard's star, and there may be up to three others yet to be detected. Reading time 2 minutes The single nearest star to the Sun—which is to say, the closest star ...