Photographer Karthik Easvur reminds us that our galaxy’s center is 25,000 light-years away. So light from the galactic center that reached the sensor of his camera started its journey 25,000 years ago.
A large explosion happened Friday night into Saturday at Hawaii’s Kilauea Volcano. The 1st serious injury is reported. USGS warns of the release of toxic gases in a plume called a laze, which happens when molten lava hits sea water. Latest images and videos here.
On spring mornings, from either hemisphere, you can’t easily see Mercury. Peter Lowenstein in Mutare, Zimbabwe – 19 degrees south latitude, where it’s autumn now – shares this month’s excellent Southern Hemisphere view of Mercury, as the old moon swept past.