Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

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 ...

Keep an eye on the forecast for clear night skies, so that you don't miss out on the astronomical events occurring throughout ...

The object is expected to make its closest approach on December 19, 2025, passing by at a distance of approximately 167 ...

Tossing a bad guy into the Sun sounds simple enough, but orbital mechanics make it a far trickier task than you'd expect.

These images mark an early milestone in the mission, confirming that OSIRIS-APEX is healthy and on course for its 2029 ...

In the early hours ofNovember 25, 2025, stargazers will have the rare opportunity to witness two of our solar system’s ...

NASA has drafted its Mars rover Perseverance to help monitor the sun’s activity. Every day for the next two months, the rover ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

The obvious way to fire someone into the Sun is the direct approach, as shown in South Park Season 1. Point a rocket at the ...

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have confirmed. However, the boundaries of celestial definitions are continually ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet.Related video ...