Large meteorite and comet impacts into the sea are now believed to have formed the nurseries from which life on Earth first sparked.
Three-quarters of Americans are concerned about potential eye problems from the sun's ultraviolet rays, yet only 31 percent protect their eyes with sunglasses or other UV-protective eyewear every time they go outside, according to a new nationwide survey released today. The report by The Vision Council, based on a survey of more than 10,000 adults, finds 34 percent of adults have experienced symptoms of prolonged UV exposure, such as eye irritation, trouble seeing, and red or swollen eyes.
It happens only a little more than once a decade and the next chance to see it is Monday, May 9, 2016. Throughout the US, sky watchers can watch Mercury pass between Earth and the sun in a rare astronomical event known as a planetary transit. Three NASA satellites will be providing images of the transit and one of them will have a near-live feed.
Earlier this year scientists presented evidence for Planet Nine, a Neptune-mass planet in an elliptical orbit 10 times farther from our Sun than Pluto. Since then theorists have puzzled over how this planet could end up in such a distant orbit. New research by astronomers at the Harvard-Smithsonian Center for Astrophysics examines a number of scenarios and finds that most of them have low probabilities. Therefore, the presence of Planet Nine remains a bit of a mystery.
Severe spring thunderstorms frequently spawned tornadoes from the Gulf Coast north and eastward during the past seven days. NASA's IMERG data were used to estimate the amount of rain that fell from April 25 to May 2, 2016.
New research reveals that the increase in forest photosynthesis and growth made possible by tropical cyclones in the southeastern United States captures hundreds of times more carbon than is released by all vehicles in the US in a given year.
Astronomers using the TRAPPIST telescope at ESO's La Silla Observatory have discovered three planets orbiting an ultracool dwarf star just 40 light-years from Earth. These worlds have sizes and temperatures similar to those of Venus and Earth and are the best targets found so far for the search for life outside the solar system. They are the first planets ever discovered around such a tiny and dim star.
An international team of astronomers composed of UC San Diego astrophysicists has discovered three Earth-sized planets orbiting near the 'habitable zone' of an ultracool dwarf star, the first planets ever discovered around such a tiny and dim star.
For the first time, an international team of astronomers from MIT, the University of Liège in Belgium, and elsewhere have detected three planets orbiting an ultracool dwarf star, just 40 light years from Earth. The sizes and temperatures of these worlds are comparable to those of Earth and Venus, and are the best targets found so far for the search for life outside the solar system. The results are published in the journal Nature.
Nearly 10 billion years ago, the black hole at the center of a galaxy known as PKS B1424-418 produced a powerful outburst. Light from this blast began arriving at Earth in 2012. Now astronomers using data from NASA's Fermi Gamma-ray Space Telescope and other space- and ground-based observatories have shown that a record-breaking neutrino seen around the same time likely was born in the same event.