How can someone discover a real planet in the solar system? Michael Brown of the California Institute of Technology answers the question in this special "Mysteries of the Cosmos" edition of "Ask a Scientist"
Astronomy & Space
Astronomy may well be the oldest science of all, seeking answers to questions such as: "Where did it all come from?" and "Are we alone?" But, today's astronomers are focusing on phenomena our forbearers never imagined—planets orbiting other stars, for example; black holes the size of our solar system; galaxies being driven apart by invisible "dark energy"; ripples in the fabric of space and time; and of course the big bang, where time itself began.
Mammals gone wild, blue star mystery, muscle rescue and taming a berry
In the last few years, the Vavilov Ice Cap in the Russian High Arctic has dramatically accelerated, sliding as much as 82 feet a day in 2015, according to a new multi-national, multi-institute study
Hot and cold time travel, light-speed A.I. for I.D., and hey, where'd the water go?
Why isn't Pluto a planet anymore? And what is a planet anyway? Astrophysicist Jackie Faherty explains!
On Sept. 22, 2017, the National Science Foundation's IceCube Neutrino Observatory alerted the international astronomy community that a high-energy neutrino had passed through the Earth. That notification set in motion follow-on observations from nearly two dozen observatories on Earth and in space, ultimately confirming the source of the neutrino, a first for science
National Science Foundation-funded scientists and engineers are bringing some of their most challenging research questions to the International Space Station
A Yale University-led research group has created the most detailed maps yet of a vast seedbed of stars similar to Earth's sun
Butterfly eyes, species expansion, everything-repellent and the cosmos. It's your weekly briefing on the latest discoveries you might not hear about anywhere else, all with funding from the National Science Foundation
Frank Würthwein, a University of California, San Diego, physics professor, talks about how multi-messenger astronomy is advancing our knowledge of the universe
Armed with a small antenna, scientists make a giant discovery: Evidence of the first light from some of the first stars in the universe
Where do the stars in our galaxy come from?
Marissa Shuffler's industrial and organizational psychology research helps NASA put the right players on the right teams for space travel
Have you ever wondered if planets are still being formed? Dr. Debra Fischer answers your question in this special "Mysteries of the Cosmos" edition of Ask a Scientist
With support from the National Science Foundation, solar plasma physicists at the University of Michigan study solar storms as they form and then barrel off the sun, sometimes hitting Earth with damaging force
In a first of its kind, citizen scientists and researchers created a ninety-minute time-lapse video of the sun's inner corona
Is the universe infinite and will it last forever? Saul Perlmutter, a professor of physics at the University of California, Berkeley, answers your question in this special "Mysteries of the Cosmos" edition of Ask a Scientist
On Aug. 17, 2017, the Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo detected, for the first time, gravitational waves from the collision of two neutron stars
New observations with the Atacama Large Millimeter/submillimeter Array (ALMA) contain compelling evidence that two newborn planets, each about the size of Saturn, are in orbit around a young star known as HD 163296
We asked NSF's Division of Astronomical Sciences Program Director David Boboltz: What are ways in which people can view the solar eclipse safely?