Universe Today 28 Aug 2020, 16:34 UTC Four centuries ago, Johannes Kepler observed a bright new star in the night sky. Astronomers from all over the world noticed it, but it came to be known as Kepler’s star. It was caused by a stellar explosion 20,000 light-years from Earth, and it was the most recent naked-eye supernova to appear in our galaxy.
ABC 28 Aug 2020, 13:34 UTC Earlier this week, NASA said an asteroid was projected to head toward Earth, potentially entering the atmosphere on November 2, a day before the US presidential election. What immediately followed were shock headlines and social media posts sensationalising the announcement to suggest the asteroid could hit Earth.
New Scientist 27 Aug 2020, 19:00 UTC Our planet may have been born wet. When and how Earth got its water is an open question in planetary science. Now an analysis of meteorites from the inner solar system hints that water may have arrived along with the rocks that formed the planet.
Universe Today 27 Aug 2020, 15:49 UTC 359 million years ago the Earth suffered one of its worst extinction events, and a team of researchers at the University of Illinois think that it might be caused by a series of supernova explosions no more than 35 light years away.
Universe Today 26 Aug 2020, 15:42 UTC Imagine if a star could tell you it had planets. That would be really helpful because finding planets orbiting distant stars – exoplanets – is hard. We found Neptune, the most distant planet in our own solar system, in 1846. But we didn’t have direct evidence of a planet around ANOTHER star until….1995.…149 years later. Think about that. Any science fiction you watched or read that was written before 1995 which depicted travel to exoplanets assumed that other planets even existed. Star Trek: The Next Generation aired its last season in 1994. We didn’t even know if Vulcan was out there. (Now we do!…sortof)
Astro Bob 24 Aug 2020, 20:31 UTC Please don’t worry about asteroid 2018 VP1, the one you may have heard about in the news recently. Yes, it’s headed in our direction and will pass closest to Earth on November 2, just one day before the U.S. presidential election. Despite the apocalyptic timing, this tiny object — estimated at 7 feet (2 meters) across — will almost certainly will miss the planet. Its nominal closest approach occurs around 6 a.m. CST November 2 when it zips past us at a distance of 260,400 miles (419,000 km). That’s 20,000 miles beyond the moon, so we can all relax.