Comet theory may explain how life started on Earth By David Perlman , Science Editor Emeritus July 21, 2013 This March 2, 2013 photo made available by spaceweather.com shows the comet, Pan-STARRS ...

Comet theory false: Doesn't explain Ice Age cold snap, Clovis changes, animal extinction. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2014 / 05 / 140513113605.htm.

Researchers have found evidence off the coast of New Jersey that suggests a comet or space rock smashed into Earth 56 million years ago, perhaps setting off a massive warming that began around that ...

The first clear and close-up photos ever taken of a comet have scientists rewriting much of what they thought they knew about the common and often dazzling objects that transit our solar system ...

New Theory on Old Debate: Comet Killed the Mammoth. By Christopher Lee. June 10, 2007 at 8:00 p.m. EDT.

Questions about the theory were first raised after scientists in May reported that only three of the 29 sites around the world where the impact is thought to have occurred date to prehistoric times.

The comet Hale-Bopp, photographed from Minnesota by Kevin Dooley. It wasn’t a comet. Really. A widely-held (and often-discredited) theory suggests that a comet from outer space was responsible ...

The weather forecast here is typical for summer: hot and humid. And, oh yes, watch for giant snowballs from outer space. The part about the snowballs comes from a University of Iowa physics profess… ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

Comet Ping Pong, a pizzeria in Washington, D.C., has been made the center of a bizarre online conspiracy theory — with real-world consequences.

A recently discovered comet will soon swing by Earth for the first time in 50,000 years. The green comet will make its closest approach between February 1 and 2.