Press "Enter" to skip to content

Earth may be in the middle of a giant asteroid spike

Earth may be in the middle of a giant asteroid spike

aHR0cDovL3d3dy5saXZlc2NpZW5jZS.jpg

Like a motorcycle windshield splattering bugs on the highway, Earth’s atmosphere is constantly deflecting tiny bits of extraterrestrial rock, dust and other space garbage that get in the way of our planet’s 67,000-mph (107,000 km/h) joyride. Occasionally, that debris breaks through – as it did 66 million years ago, when an asteroid the size of Manhattan crashed into the Gulf of Mexico and killed the dinosaurs. That impact was singularly catastrophic. But, according to a new study published today (Jan. 17) in the journal Science, that smashup was also just one episode in an ongoing spike of gargantuan asteroid impacts bombarding our neck of the solar system. After studying 1 billion years of asteroid craters on the Earth and moon, the study’s authors found that the rate of huge asteroid impacts on Earth has nearly tripled in the past 290 million years – and nobody’s sure why. “It’s perhaps fair to say it was a date with destiny for the dinosaurs,” study co-author Thomas Gernon,…
Source: Earth may be in the middle of a giant asteroid spike

Disqus Comments

Specify a Disqus shortname at Social Comments options page in admin panel

Facebook Comments

Mission News Theme by Compete Themes.