New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun.

Venus, often called Earth's "sister planet," shares striking similarities with our world,yet it has become one of the most ...

In 2020, scientists detected phosphine gas on Venus, a molecule linked to microbial life on Earth. New missions funded by ...

Venus reaches its highest altitude above the eastern horizon in 2025 on Aug. 1. Venus will reach its highest altitude in the ...

August brings Saturn and Neptune together, offers two shadow transits of Titan, and sees a conjunction of Venus and Jupiter.

Aug. 12-13 — Peak of the annual Perseid meteor shower. Perseids are fragments shed by comet 109P/Swift-Tuttle. Every August, ...

The mystery object is on a stealth path through the inner Solar System, and Earth’s fastest rockets aren’t nearly quick ...

Mercury begins to emerge from the dawn glow after Aug. 12. On Aug. 19, Mercury reaches its greatest elongation west of the ...

When the moon completes the first quarter of its journey around Earth this morning at 5:41 a.m. Its 90-degree angle between ...

Mars remains an evening fixture, Saturn is nearing opposition, and Venus and Jupiter meet in the predawn sky Aug. 12.

For many years astronomers have mused about the possibility of putting radio telescopes on the Moon. Considering the extreme ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...