Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

Two sister meteor showers are already flashing across night skies—and will peak a week apart. The Southern Taurids will reach ...

Comets are sometimes dislodged from their home in the outer solar system by the gravity of another object, redirecting them toward the sun. As the comet gains speed, it swings around ... from Earth.

Nicknamed the Dark Wolf Nebula, the cloud is in the Scorpius constellation near the middle of the Milky Way, around 5,300 light-years from Earth. This image takes up an area in the sky equivalent to ...

Potentially deadly comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

If such a comet happens to be heading toward Earth, we wouldn't know about it until too late. But that could change thanks to our observations of meteor showers. Comets originate from the Oort ...

Astronomers have discovered a rocky Earth-like planet around a white dwarf star, hinting at our planet's future about eight billion years from now.

The comet reached its perihelion on Monday at 7:30 a.m. ET and was completely vaporized after passing within 1% of Earth’s distance from the sun, less than 1 million miles (1.5 million ...

To understand why dark matter is such a challenge for scientists, consider that all the matter wrapped up in everything we see around us — from stars, planets, and moons down to humans ...

18, 2024 — Physicists have shown that extremely light particles known as axions may occur in large clouds around neutron stars. These axions could form an explanation for the elusive dark matter ...