Tropical Depression 20 formed in the Eastern Pacific Ocean on Sunday and by Monday at 11 a.m. it exploded into a hurricane named Seymour. An animation of satellite imagery created by NASA shows the development of the new hurricane.
A team led by a University of Oklahoma astrophysicist discovered a rare and surprising new circumstellar disk: the oldest of its kind. They made this discovery working together with a remarkable team of collaborators with no formal training in astrophysics: citizen scientists from around the world.
A group of citizen scientists and professional astronomers, including Carnegie's Jonathan Gagné, joined forces to discover an unusual hunting ground for exoplanets. They found a star surrounded by the oldest known circumstellar disk -- a primordial ring of gas and dust that orbits around a young star and from which planets can form as the material collides and aggregates.
Two powerful typhoons have hit the Philippines in less than a week. Sarika was followed by Typhoon Haima. Using satellite data, NASA estimated the intense rainfall generated by these two typhoons.
Five years ago, the Nobel Prize in Physics was awarded to three astronomers for their discovery, in the late 1990s, that the universe is expanding at an accelerating pace. Now, a team of scientists led by Professor Subir Sarkar of Oxford University's Department of Physics has cast doubt on this standard cosmological concept.
For the first time, researchers have tracked a particular kind of solar wave as it swept upward from the sun's surface through its atmosphere.
Everything we know about the formation of solar systems might be wrong, says University of Florida astronomy professor Jian Ge and his postdoc, Bo Ma. They've discovered the first 'binary-binary' -- two massive companions around one star in a close binary system, one so-called giant planet and one brown dwarf, or 'failed star.' The first, called MARVELS-7a, is 12 times the mass of Jupiter, while the second, MARVELS-7b, has 57 times the mass of Jupiter.
UC Berkeley astronomers who have been tracking volcanic activity on Io at high frequency since 2013 using adaptive optics on the Keck and Gemini telescopes published their first 29 months of observations. The 100 separate images over that period show more than 400 hot spot events, ranging from eruptions to lava flows old and new. Some of the eruptions appeared to progress across the surface over time, as if one triggered another 500 kilometers away.
'Planet Nine,' which may lurk beyond Neptune, may be the reason that the solar system's planets orbit at a six-degree angle with respect to the sun.
Tropical Depression Sarika made landfall early on Oct. 19 as NASA-NOAA's Suomi NPP satellite passed overhead and provided an image of the storm.