Sep 20, 2017
There are two leading ways to measure the universe's rate of expansion, and for fifteen years, they more or less agreed with one another. Not anymore, and that’s a big deal.
Mar 5, 2015
March 5, 2015: Mark your calendar. On Friday, March 6th, NASA’s Dawn spacecraft will enter orbit around Ceres, becoming the first spacecraft from Earth to visit a dwarf planet. "Dawn is about to make history," said Robert Mase, project manager for the Dawn mission at NASA’s Jet Propulsion... Read More
Jan 7, 2015
Jan. 7, 2015: Although NASA’s Hubble Space Telescope has taken many breathtaking images of the universe, one snapshot stands out from the rest: the iconic view of the so-called “Pillars of Creation.” The jaw-dropping photo, taken in 1995, revealed never-... Read More
Jan 6, 2015
Jan. 6, 2015: How many stars like our sun host planets like our Earth? NASA’s Kepler Space Telescope continuously monitored more than 150,000 stars beyond our solar system, and to date has offered scientists an assortment of more than 4,000 candidate planets for further... Read More
Jan 6, 2015
Jan. 6, 2015: Astronomers have observed the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way galaxy. This event, detected by NASA’s Chandra X-ray Observatory, raises questions about the behavior of this giant black hole... Read More
Jan 5, 2015
Jan. 5, 2015: The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy (M31) is the sharpest large composite image ever taken of our galactic next-door neighbor.
Dec 19, 2014
Dec 19, 2014: The European Space Agency’s orbiting Rosetta spacecraft is expected to come within four miles (six kilometers) of the surface of comet 67P/Churyumov–Gerasimenko in February of next year. The flyby will be the closest the comet explorer will come during its prime mission.
Dec 18, 2014
Dec. 18, 2014: NASA's planet-hunting Kepler spacecraft is making a comeback with the discovery of the first exoplanet found using its new mission -- K2. The discovery was made when astronomers and engineers devised an ingenious way to repurpose Kepler for the K2 mission and... Read More
Dec 14, 2014
Dec. 14, 2014: Where did our planet get its oceans? Among planetary scientists, this is one of the most important and perplexing questions about the origins of Earth. One popular theory holds that water was brought to Earth by the ancient impacts of comets and... Read More
Dec 4, 2014
Dec. 4, 2014: On Dec. 3, the Japan Aerospace Exploration Agency (JAXA) successfully launched its Hayabusa2 mission to rendezvous with an asteroid, land a small probe plus three mini rovers on its surface, and then return samples to Earth. NASA and JAXA are cooperating on the science of the... Read More
Nov 21, 2014
Nov 21, 2014: A 3D image shows what it would look like to fly over the surface of comet 67P/Churyumov-Gerasimenko. The image was generated from data collected by the Rosetta Lander Imaging System (ROLIS) aboard the European Space Agency’s Philae spacecraft during the descent to the spacecraft’s... Read More
Universe, Solar System
Nov 18, 2014
Nov 18, 2014: Born from the rubble of a violent collision, hurled through space for millions of years and dismembered by the gravity of planets, asteroid Bennu had a tough life in a rough neighborhood: the early solar system. "Bennu's Journey," a new animation... Read More
Universe, Solar System
Nov 17, 2014
November 17, 2014: Images from NASA's Dawn Mission have been used to create a series of high-resolution geological maps of the large asteroid Vesta, revealing the variety of surface features in unprecedented detail. These maps are included with a series of 11 scientific papers... Read More
Nov 6, 2014
Nov 6, 2014: A NASA sounding rocket experiment has detected a surprising surplus of infrared light in the dark space between galaxies, a diffuse cosmic glow as bright as all known galaxies combined. The glow is thought to be from orphaned stars flung out of galaxies... Read More
Oct 31, 2014
Oct 31, 2014: As the European Space Agency prepares to drop a lander on Comet 67P/Churyumov-Gerasimenko on Nov. 12th, the comet is showing signs of increased activity.