Earth" planet named HD 20794 d, located 20 light-years away, which could have conditions suitable for life.

Online chatter and a frenzy of media coverage has tended to make a big deal of allegedly rare "planetary alignments" and "planet parades" gracing our night skies. The hoopla has culminated this ...

The alignment will include Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars If you missed seeing the alignment of six planets in the sky in January, don't worry. Another one is coming up ...

The researchers are now fine-tuning their method to search for signs of planets outside the Milky Way, building on previous breakthrough work led by co-author Rosanne di Stefano, which identified the ...

Six planets are visible in the night sky right now. On Feb. 28, Mercury will add a seventh planet to the planetary parade. Venus, Mars and Jupiter are 'great naked-eye targets' for beginning ...

It's not too late to see the planet parade. Stargazers will be able to see four or five planets in the night sky with their naked eye this month. A rare seven-planet alignment will reportedly be ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short life of what was, for a single human lifetime, the solar system's ...

Pluto was discovered at Lowell Observatory in Flagstaff, Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet ...

The idea behind it was simple: Armed conflict threatens the fragile ecosystems that sustain us all, so repairing our damaged planet may become an active vehicle for peace. It was utopian then ...

But even in complex geopolitical times, collaboration across borders and across our differences is the only option to protect the foundation of humanity’s existence – Planet Earth.” “UNEP calls for a ...