Running away: Astronomers think they have found the fastest moving pulsar yet found, flying through space at between 5 to 6 million miles per hour.
The new X-ray telescope NuSTAR has opened its eye and taken its first images.
Scientists have found a previously unknown mineral embedded in a meteorite that crashed to Earth in 1969.
Dubbed panguite, the new titanium oxide is named after Pan Gu, the giant from ancient Chinese mythology who established the world by separating yin from yang to create the earth and the sky. … “Panguite is an especially exciting discovery since it is not only a new mineral, but also a material previously unknown to science,” says Chi Ma, a senior scientist and director of the Geological and Planetary Sciences division’s Analytical Facility at Caltech and corresponding author on the paper.
Astronomers watch as the supermassive black hole in the center of the Milky Way begins to eat a giant gas cloud.
The real fireworks will occur next year, when the cloud passes only 25 billion miles from the black hole.
Two exoplanets in a tight orbital dance.
“These are the closest two planets to one another that have ever been found,” Agol said. “The bigger planet is pushing the smaller planet around more, so the smaller planet was harder to find.”
Orbiting a star in the Cygnus constellation referred to as Kepler-36a, the planets are designated Kepler-36b and Kepler-36c. Planet b is a rocky planet like Earth, though 4.5 times more massive and with a radius 1.5 times greater. Kepler-36c, which could be either gaseous like Jupiter or watery, is 8.1 times more massive than Earth and has a radius 3.7 times greater.
But wait, there’s more!
The fact that the two planets are so close to each other and exhibit specific orbital patterns allowed the scientists to make fairly precise estimates of each planet’s characteristics, based on their gravitational effects on each other and the resulting variations in the orbits. To date, this is the best-characterized system with small planets, the researchers said.
They believe the smaller planet is 30 percent iron, less than 1 percent atmospheric hydrogen and helium and probably no more than 15 percent water. The larger planet, on the other hand, likely has a rocky core surrounded by a substantial amount of atmospheric hydrogen and helium.
Astronomers have videotaped the fly-by of a 23-foot-wide asteroid as it zipped past the Earth on May 29 at a distance of only about 12,000 miles. The video is below the fold.
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O goody: Scientists have concluded that a 460 foot diameter asteroid only has a 1 percent chance of hitting the Earth in 2040.
Observations to date indicate there is a slight chance that AG5 could impact Earth in 2040. Attendees expressed confidence that in the next four years, analysis of space and ground-based observations will show the likelihood of 2011 AG5 missing Earth to be greater than 99 percent.
It appears that they won’t really be able to pin down the impact odds for 2040 until 2023, when the asteroid passes the Earth at a distance of 1.1 million miles.
Watch an asteroid a third of a mile across zip past the Earth tonight.
NASA has released more information about the two space telescopes the National Reconnaissance Office has donated to them.
Telescope for sale: Unless they can find a buyer the United Kingdom will close down its 3.8 meter infrared UKIRT telescope on Mauna Kea in 2013.
This is a tragedy. A 3.8 meter telescope is no slouch and can do amazing research. The problem is that all the available money in ground-based astronomy is now being eaten up by the construction of giant telescopes in the 20 to 40 meter range.
What astronomy needs are some wealthy philanthropists who would like to buy these mid-sized telescopes, put their names on it, and finance their operation. This is how most big telescopes were made possible before World War II.
After a three month delay so that NASA could correct software issues, Orbital Sciences successfully launched NASA’s NuSTAR X-ray telescope this morning.
