Stars, galaxies, planets, nebulae, etc. Anything space or space-related.
Theme by Andrew
Partial lunar eclipse to kick off month of great skywatching
Skywatchers in North and South America, Australia and eastern regions of Asia will be treated to a partial lunar eclipse on June 4 around 7:00 a.m. EDT.
How do we know how far away objects are? This video nicely illustrates what we call the “distance ladder” in astronomy: parallax, standard candles, redshift— all technical concepts clearly and beautifully explained.
Above Earth, Fixing Hubble
Credit: STS-125 Crew, NASA
Memorial Day Sun
(@astro_andre): Dragon smoothly undocked, moved out, released and on its way home.
NASA’s NuSTAR Gearing Up for Launch |
Final pre-launch preparations are underway for NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR. The mission, which will use X-ray vision to hunt for hidden black holes, is scheduled to launch no earlier than June 13 from Kwajalein Atoll in the Marshall Islands. The observatory will launch from the belly of Orbital Sciences Corporation’s L-1011 “Stargazer” aircraft aboard the company’s Pegasus rocket.
Technicians at Vandenberg Air Force Base in central California are busy installing the rocket’s fairing, or nose cone, around the observatory. A flight computer software evaluation is also nearing completion and should be finished before the Flight Readiness Review, which is scheduled for June 1. A successful launch simulation of the Orbital Sciences’ Pegasus XL rocket was conducted last week.
The mission plan is for NuSTAR and its rocket to be attached to the Stargazer plane on June 2. The aircraft will depart California on June 5 and arrive at the Kwajalein launch site on June 6. The launch of NuSTAR from the plane is targeted for 8:30 a.m. PDT (11:30 a.m. EDT) on June 13.
NuSTAR is a Small Explorer mission led by the California Institute of Technology in Pasadena and managed by NASA’s Jet Propulsion Laboratory, also in Pasadena, for NASA’s Science Mission Directorate in Washington. The spacecraft was built by Orbital Sciences Corporation, Dulles, Va. Its instrument was built by a consortium including Caltech; JPL; the University of California, Berkeley; Columbia University, New York; NASA’s Goddard Space Flight Center, Greenbelt, Md.; the Danish Technical University in Denmark; Lawrence Livermore National Laboratory, Livermore, Calif.; and ATK Aerospace Systems, Goleta, Calif. NuSTAR will be operated by UC Berkeley, with the Italian Space Agency providing its equatorial ground station located at Malindi, Kenya. The mission’s outreach program is based at Sonoma State University, Rohnert Park, Calif. NASA’s Explorer Program is managed by Goddard. JPL is managed by Caltech for NASA
10 Moons Every Person Should Know
Pretty much everyone can rattle off the names of our solar system’s eight (formerly nine) planets, but ask the average person to list some moons and you’ll be lucky if they can tell you more than two or three.
Now, you obviously can’t expect people to remember the name of every single satellite in the solar system (after all, they outnumber the planets by around 20 to 1), but if you have even the slightest interest in astronomy, it wouldn’t kill you to be familiar with at least an even ten. So with that in mind, we’ve assembled this reference guide to ten of the solar system’s most noteworthy moons.
The Sombrero Galaxy in Infrared
Credit: R. Kennicutt (Steward Obs.) et al., SSC, JPL, Caltech, NASA
This floating ring is the size of a galaxy. In fact, it is part of the photogenic Sombrero Galaxy, one of the largest galaxies in the nearby Virgo Cluster of Galaxies. The dark band of dust that obscures the mid-section of the Sombrero Galaxy in optical light actually glows brightly in infrared light. The above image, digitally sharpened, shows the infrared glow, recently recorded by the orbiting Spitzer Space Telescope, superposed in false-color on an existing image taken by NASA’s Hubble Space Telescope in optical light. The Sombrero Galaxy, also known as M104, spans about 50,000 light years across and lies 28 million light years away. M104 can be seen with a small telescope in the direction of the constellation Virgo.
by Kwon O Chul
Aurora is an amazing art performance of nature. This collection of time-lapse videos is an enchanting record of the northern lights. The sequences are made during September 2011 in Yellowknife, northern Canada.
