Dim objects called brown dwarfs, less massive than the sun but more massive than Jupiter, have powerful winds and clouds–specifically, hot patchy clouds made of iron droplets and silicate dust. Scientists recently realized these giant clouds can move and thicken or thin surprisingly rapidly, in less than an Earth day, but did not understand why.
Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances). Florence is among the largest near-Earth...Show More Summary
On Monday, August 21, for the first time in 99 years, a total solar eclipse will march across the entire United States.
A dragon eating the Sun. Make that a giant toad. A demon. No, a vampire!
The first total solar eclipse to sweep North America in nearly a century will march across the continent August 21, casting a shadow over millions of people from coast to coast.
Its jagged, soaring peaks rise high over northwest Wyoming, but Grand Teton National Park is always in the shadow of its world-renowned neighbor, Yellowstone National Park.
Although almost exclusively American, the 40-year-old Nasa Voyager spacecraft helped raise the ambitions of the UK’s planetary astronomers The rasp of the filling cabinet’s shutter fills the office, and my guest comes face to face with his past. Show More Summary
Sunday, August 20 marks the 40th anniversary of the launch of Voyager 2. Tuesday, September 5, will be the 40th anniversary for Voyager 1. Throughout the next three weeks, we'll be posting new and classic material in honor of the Voyagers. Here's a preview.
Type Iax supernovae are weak enough that part of the exploding star may be able to survive. Now, we may have spotted the first star that lived to tell the tale
(American Association for the Advancement of Science) Astronomers have identified a white dwarf star in our galaxy that may be the leftover remains of a recently discovered type of supernova.
Spacewalking cosmonauts have set free the world's first satellite made with a 3-D printer.
Astrophysicists predict that an Earth-like planet may be lurking in a star system just 16 light years away. The team investigated the star system Gliese 832 for additional exoplanets residing between the two currently known alien worlds in this system....
In 1918, astronomers invited the artist Howard Russell Butler to record the last total solar eclipse to cross the continental United States.
Will NASA discover signs of ancient life at one of the largest and oldest impact craters in the Solar System? "Mars 2020 represents a crucial first step towards a possible Mars sample return," said Ken Williford, Director of the Jet...
(University of Texas at Arlington) Astrophysicists at the University of Texas at Arlington have predicted that an Earth-like planet may be lurking in a star system just 16 light years away. The team investigated the star system Gliese 832 for additional exoplanets residing between the two currently known alien worlds in this system. Show More Summary
Astrophysicists are joining sightseers in watching Monday’s total solar eclipse across North America but, in the decade to come, they will be viewing eclipses that last for hours instead of a few minutes – thanks to a pioneering ESA space mission.
For the first time in India, a state government is using satellites to assess lost crops so that farmers can benefit from speedy insurance payouts.
(Phys.org)—A trio of researchers with Universidad Católica del Norte and the Max-Planck-Institut für Radioastronomie has found evidence that suggests that convection alone cannot account for the amount of material that is pulled from the surface of a red supergiant. Show More Summary
Lasers that will fly on NASA's Ice, Cloud and land Elevation Satellite-2, or ICESat-2, are about to be put to the test at the agency's Goddard Space Flight Center in Greenbelt, Maryland.
One of the most recognizable points on the Earth for astronauts to photograph is the Bahamas, captured in striking images many times from the vantage point of the International Space Station.