Hubble extends stellar tape measure 10 times farther into space
(Phys.org) —Using NASA's Hubble Space Telescope, astronomers now can precisely measure the distance of stars up to 10,000 light-years away—10 times farther than previously possible.
Gravity measurements confirm subsurface ocean on Enceladus
In 2005, NASA's Cassini spacecraft sent pictures back to Earth depicting an icy Saturnian moon spewing water vapor and ice from fractures, known as "tiger stripes," in its frozen surface. It was big news ...
Health risks of Mars mission would exceed NASA limits
Efforts to send humans to Mars would likely expose them to health risks beyond the limits of what NASA currently allows, an independent panel of medical experts said Wednesday.
Hubble Space Telescope spots Mars-bound comet sprout multiple jets
(Phys.org) —NASA released Thursday an image of a comet that, on Oct. 19, will pass within 84,000 miles of Mars—less than half the distance between Earth and our moon.
First sightings of solar flare phenomena confirm 3-D models of space weather
Scientists have for the first time witnessed the mechanism behind explosive energy releases in the Sun's atmosphere, confirming new theories about how solar flares are created.
Astronomers observe closest milemarker supernova in generation (Update)
(Phys.org) —Researchers including a Texas Tech University physicist have intently studied the closest type Ia supernova discovered in a generation. The proximity to Earth could yield better understanding ...
Mystery of planet-forming disks explained by magnetism
(Phys.org) —Astronomers say that magnetic storms in the gas orbiting young stars may explain a mystery that has persisted since before 2006.
Scientists identify a plasma plume that naturally protects the Earth against solar storms
The Earth's magnetic field, or magnetosphere, stretches from the planet's core out into space, where it meets the solar wind, a stream of charged particles emitted by the sun. For the most part, the magnetosphere ...
Astronomers witness mysterious, never-before-seen disintegration of asteroid
Astronomers have witnessed for the first time the breakup of an asteroid into as many as 10 smaller pieces. The discovery is published online March 6 in Astrophysical Journal Letters.
Stars' clockwork motion captured in nearby galaxy
(Phys.org) —Using the sharp-eyed NASA Hubble Space Telescope, astronomers have for the first time precisely measured the rotation rate of a galaxy based on the clock-like movement of its stars.
NASA solves mystery of Mars 'doughnut' rock
NASA scientists were finally able to explain the origin of the mysterious rock shaped like a jelly doughnut that appeared near the rover Opportunity in early January.
Four new galaxy clusters discovered 10 billion light years from Earth
(Phys.org) —Four unknown galaxy clusters each potentially containing thousands of individual galaxies have been discovered some 10 billion light years from Earth.
Hubble and Cassini get a 360-degree view of Saturn's auroras (w/ video)
(Phys.org) —NASA trained several pairs of eyes on Saturn as the planet put on a dancing light show at its poles. While NASA's Hubble Space Telescope, orbiting around Earth, was able to observe the northern ...
Kepler finds a very wobbly planet
(Phys.org) —Imagine living on a planet with seasons so erratic you would hardly know whether to wear Bermuda shorts or a heavy overcoat. That is the situation on a weird, wobbly world found by NASA's planet-hunting ...