What if we learned an asteroid was headed toward Earth? How much energy does it take to destroy an asteroid and break it into pieces? More than we thought, it turns out. Read more.
"This white dwarf is so old that whatever process is feeding material into its rings must operate on billion-year timescales," said one of the scientists involved in the discovery. Read more.
There've been reports of black panthers in Africa for more than a century, but only 1 confirmed with photographic evidence - a 1909 photo taken in Ethiopia - until now. See photos and video.
Steven A. Sweet in Mississauga, Ontario, Canada, caught the old moon - a very slim waning crescent, visible in the rising dawn - only 20 minutes before Monday's sunrise. Thank you, Steven! View at EarthSky Community Photos, or visit Steven at Lunar 101-Moon Book.
