New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once ...

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

Recent simulations and research have unveiled a fascinating new insight into the history of the solar system’s terrestrial ...

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.

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

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

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

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

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

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

Supermoons only happen three to four times a year, and always appear consecutively. We have already had six full moons this ...