Atmosphere

Fossilized raindrop imprints shed light on early atmosphere

 

Fossilized imprints of raindrops that were sealed into stone 2.7 billion years ago indicate that Earth’s early atmosphere could have been packed with greenhouse gases, according to new research that addresses a long-standing paradox of the planet’s early history.

No drought for Northern Utah this spring, forecasters say

OGDEN — NOAA predicts a drought-free spring for Northern Utah’s Wasatch Front.

But the National Oceanic and Atmospheric Administration, in a chart released Thursday, projects that most of central Utah will have drought that persists or intensifies and that, for Southern Utah, a drought is likely to develop.

This handout image provided by NASA, taken Sunday night, Jan. 22, 2012, shows a solar flare erupting on the Sun's northeastern hemisphere. Space weather officials say the strongest solar storm in more than six years is already bombarding Earth with radiation with more to come. The Space Weather Prediction Center in Colorado observed a flare Sunday night at 11 p.m. EST. Physicist Doug Biesecker said the biggest concern from the speedy eruption is the radiation, which arrived on Earth an hour later. It will likely continue through Wednesday. It's mostly an issue for astronauts' health and satellite disruptions. It can cause communication problems for airplanes that go over the poles. (AP Photo/NASA)

Solar storm sends charged particles toward Earth

A massive explosion on the sun's surface has triggered the largest solar radiation storm since 2005 and has unleashed a torrent of charged plasma particles toward Earth, though the threat to satellites, power grids and other high-tech hardware is believed to be manageable, scientists said.

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