June through August 2019 was the Northern Hemisphere’s hottest summer on record, tied with 2016. Meanwhile, in the Southern Hemisphere, the same period marked the 2nd-warmest winter in the 140-year record.
Could a collision between 2 asteroids millions of miles away cause an ice age on Earth, some 460 million years ago? A new study of earthly rocks and sediments – plus micrometeorites that fell in Antarctica – suggest it’s possible.
Artist's concept of the asteroid collision 466 million years ago that created enough dust to cause an ice age on Earth. Image via Don Davis, Southwest Research Institute/Field Museum.
Why is the internet so chock-full of stories about asteroids on a collision course with Earth? At this rate, we should have been obliterated many times over already. Here comes the newest scare story: asteroid 2007 FT3. No, it won’t hit us, either.
This illustration shows the positions of Earth and asteroid 2007 FT3 on October 3, 2019. Note the space rock's orbit (not the object itself) does come close to the orbit of the Earth. (NASA/JPL)
Last month, rafts of pumice, spewed from an undersea volcano and spanning an area about the size of Washington, D.C., appeared in the South Pacific.
This satellite image of a pumice raft floating near the Kingdom of Tonga gave scientists a clue that an underwater volcano had erupted in the Pacific Ocean. Image via Joshua Stevens/NASA Earth .Observatory