The physics community has spent decades searching for and finding no evidence that dark matter is made of tiny exotic particles. Case Western Reserve Univ. theoretical physicists suggest researchers consider looking for candidates more in the ordinary realm and, well, more massive. Dark matter is unseen matter, that, combined with normal matter, could create the gravity that, among other things, prevents spinning galaxies from flying apart.
Laser surgery to correct eyesight is common practice, but did you know that technology developed for use in space is now commonly used to track the patient's eye and precisely direct the laser scalpel? If you look at a fixed point while tilting or shaking your head, your eyes automatically hold steady, allowing you to see clearly even while moving around. This neat trick of nature is a reflex and we are usually unaware that it even happens.
When NASA’s Dawn spacecraft visited the asteroid Vesta in 2011, it showed that deep grooves that circle the asteroid’s equator like a cosmic belt were probably caused by a massive impact on Vesta’s south pole. Now, using a super high-speed cannon at NASA’s Ames Research Center, Brown Univ. researchers have shed new light on the violent chain of events deep in Vesta’s interior that formed those surface grooves.
Federal investigators say they have determined that a space tourism rocket broke apart in flight over California's Mojave Desert after a device to slow the experimental spaceship's descent deployed too soon. While no cause for Friday's crash of SpaceShipTwo has been determined, investigators found the "feathering" system was activated before the craft reached the appropriate speed.
Astronomers have caught their first glimpse of the invisible magnetic fields that sculpt solar systems. Looking at a bright, nearby baby star and the dust swirling in its cradle, astronomers from the Univ. of Illinois and six collaborating institutions were able to make out the shape of the magnetic field surrounding the star.
The company behind the dramatic launch explosion of a space station supply mission promises to find the cause of the failure and is warning residents to avoid any potentially hazardous wreckage. Orbital Sciences Corp.'s unmanned Antares rocket blew up just moments after liftoff Tuesday evening from the Virginia coast.
An unmanned commercial supply rocket bound for the International Space Station exploded moments after liftoff Tuesday evening, with debris falling in flames over the launch site in Virginia. No injuries were reported following the first catastrophic launch in NASA's commercial spaceflight effort.
Scientists have identified an unexpected high-altitude methane ice cloud on Saturn's moon Titan that is similar to exotic clouds found far above Earth's poles. Now, eight years after spotting this mysterious bit of atmospheric fluff, NASA's Cassini spacecraft, researchers have determined that it contains methane ice, which produces a much denser cloud than the ethane ice previously identified there.
Google executive Alan Eustace broke the sound barrier and set several skydiving records over the southern New Mexico desert early Friday after taking a big leap from the edge of space. Eustace's supersonic jump was part of a project by Paragon Space Development Corp., which has been working secretly for years to develop a self-contained commercial spacesuit that would allow people to explore some 20 miles above the Earth's surface.
After 116 days of being subjected to extremely frigid temperatures like that in space, the heart of the James Webb Space Telescope, the Integrated Science Instrument Module and its sensitive instruments, emerged unscathed from the thermal vacuum chamber at NASA’s Goddard Space Flight Center. Operating a telescope powerful enough to reveal the first galaxies forming 13.5 billion years ago requires incredibly cold temperatures: about -387 F.
Massive black holes spewing out radio frequency-emitting particles at near-light speed can block formation of new stars in aging galaxies, a study has found. The research provides crucial new evidence that it is these jets of radio frequency feedback streaming from mature galaxies’ central black holes that prevent hot free gas from cooling and collapsing into baby stars.
Using extremely faint light from galaxies 10.8-billion light-years away, scientists have created one of the most complete, 3-D maps of a slice of the adolescent universe. The map shows a web of hydrogen gas that varies from low to high density at a time when the universe was made of a fraction of the dark matter we see today.
Why is the sun's million-degree corona, or outermost atmosphere, so much hotter than the sun's surface? This question has baffled astronomers for decades. A team led by the Harvard-Smithsonian Center for Astrophysics is presenting new clues to the mystery of coronal heating using observations from the recently launched Interface Region Imaging Spectrograph (IRIS).
The findings of NASA’s planet-hunting Kepler spacecraft suggest that the most common exoplanets are those that are just a bit larger than Earth but smaller than Neptune. These so-called super-Earths, which do not exist in our own solar system, have attracted the attention of astronomers, who have been trying to determine the composition of the closest of these planets. However, an unexpected barrier is blocking their progress.
The European Space Agency has confirmed the time and place it will attempt to land the first spacecraft on a comet. The unmanned probe Rosetta will release a 100-kg (220-lb) lander on Nov. 12 in a maneuver that will take about seven hours.
NASA’s MAVEN spacecraft has provided scientists their first look at a storm of energetic solar particles at Mars and produced unprecedented ultraviolet images of the tenuous oxygen, hydrogen and carbon coronas surrounding the Red Planet. In addition, the new observations allowed scientists to make a comprehensive map of highly variable ozone in the Martian atmosphere underlying the coronas.
Astronomers Chih-Hao Li and David Phillips of the Harvard-Smithsonian Center for Astrophysics want to rediscover Venus. They plan to “find” the second planet again using a powerful new optical device installed on the Italian National Telescope that will measure Venus' precise gravitational pull on the sun. If they succeed, their first-of-its-kind demonstration will be later used for finding Earth-like exoplanets orbiting distant stars.
In 2012, the Mars One project, led by a Dutch nonprofit, announced plans to establish the first human colony on the Red Planet by 2025. The mission would initially send four astronauts on a one-way trip to Mars, where they would spend the rest of their lives building the first permanent human settlement.
By focusing on large, star-forming galaxies in the universe, researchers at Johns Hopkins Univ. were able to measure its radiation leaks in an effort to better understand how the universe evolved as the first stars were formed. The team reports in a paper published online in Science that an indicator used for studying star-forming galaxies that leak radiation, is an effective measurement tool for other scientists to use.
Astronomers have detected a pulsating dead star that appears to be burning with the energy of 10 million suns, making it the brightest pulsar ever detected. The pulsar—a rotating, magnetized neutron star—was found in the galaxy Messier 82 (M82), a relatively close galactic neighbor that’s 12 million light-years from Earth.
Washington State University undergraduate Kellie Wall, 21, recently looked for evidence that water influenced crystal formation in basalt, the dark volcanic rock that covers most of eastern Washington and Oregon. She then compared this with volcanic rock observations made by the rover Curiosity on Mars’ Gale Crater, inventing a new method for detecting water on Mars.
For decades, planetary geologists have speculated that glaciers might once have crept through Valles Marineris, the 2000-mile-long chasm that constitutes the Grand Canyon of Mars. A research team has now identified what could be the first mineralogical evidence of past glaciers within the Valles Marineris: a layer of mixed sulfate minerals halfway up three-mile-high cliffs in the canyon system.
Certain primordial stars—those between 55,000 and 56,000 times the mass of our sun, or solar masses—may have died unusually. In death, these objects—among the universe’s first-generation of stars—would have exploded as supernovae and burned completely, leaving no remnant black hole behind.
Hunting from a distance of 27,000 light years, astronomers have discovered an unusual carbon-based molecule—one with a branched structure—contained within a giant gas cloud in interstellar space. Like finding a molecular needle in a cosmic haystack, astronomers have detected radio waves emitted by isopropyl cyanide. The discovery suggests that the complex molecules needed for life may have their origins in interstellar space.
Astronomers using data from NASA's space telescopes Hubble, Spitzer, and Kepler have discovered clear skies and steamy water vapor on a gaseous planet outside our solar system. The planet is about the size of Neptune, making it the smallest planet from which molecules of any kind have been detected.