AAVSO Alert Notice 513Dr. Paula Szkody, University of Washington, has requested our help in monitoring the cataclysmic variable GW Lib for upcoming Hubble Space Telescope observations, scheduled to be made during the window 2015 April 22-25 UT. Dr. Szkody also observed this object with HST … Read the rest of this article
Astronomers at the Space Telescope Science Institute and the Johns Hopkins University, both in Baltimore, Maryland, have created a new master catalog of astronomical objects called the Hubble Source Catalog. The catalog provides one-stop shopping for measurements of objects observed with NASA’s Hubble Space Telescope.
Hubble has amassed a rich legacy of images and other scientific data over its 25 … Read the rest of this article
Discovered on 5 September 1784 by astronomer William Herschel, the Veil Nebula was once a star. Now it is a twisted mass of shock waves that appears six times larger than the full Moon in the sky.
This Hubble Space Telescope image shows just a small part of the nebula, a region known as the ‘south-eastern knot’. The entire nebula … Read the rest of this article
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and ESA’s (European Space Agency) XMM-Newton telescope are showing that fierce winds from a supermassive black hole blow outward in all directions — a phenomenon that had been suspected, but difficult to prove until now.
This discovery has given astronomers their first opportunity to measure the strength of these ultra-fast winds and prove they … Read the rest of this article
Firing off a string of snapshots like a sports photographer at a NASCAR race, NASA’s Hubble Space Telescope captured a rare look at three of Jupiter’s largest moons parading across the banded face of the gas-giant planet: Europa, Callisto, and Io.
These so-called Galilean satellites (named after the 17th century scientist Galileo Galilei, who discovered them with a telescope) complete … Read the rest of this article
New maps from ESA’s Planck satellite uncover the ‘polarised’ light from the early Universe across the entire sky, revealing that the first stars formed much later than previously thought.
The history of our Universe is a 13.8 billion-year tale that scientists endeavour to read by studying the planets, asteroids, comets and other objects in our Solar System, and gathering light … Read the rest of this article
As NASA’s Dawn spacecraft closes in on Ceres, new images show the dwarf planet at 27 pixels across, about three times better than the calibration images taken in early December. These are the first in a series of images that will be taken for navigation purposes during the approach to Ceres.
Over the next several weeks, Dawn will deliver increasingly … Read the rest of this article
In 2015, Hubble will celebrate its 25th anniversary. Check out the new Hubble25 site for a host of festivities centered on Hubble’s history and explorations. The site will reminisce about the telescope’s greatest hits and look forward to its future discoveries. New events, stories and images will be added throughout 2015 in a year-long astronomy jubilee. … Read the rest of this article
This Cassini image shows Jupiter from an unusual perspective. If you were to float just beneath the giant planet and look directly up, you would be greeted with this striking sight: red, bronze and white bands encircling a hazy south pole. The multicoloured concentric layers are broken in places by prominent weather systems such as Jupiter’s famous Great Red Spot, … Read the rest of this article
After a voyage of nearly nine years and three billion miles —the farthest any space mission has ever traveled to reach its primary target – NASA’s New Horizons spacecraft came out of hibernation on Dec. 6th for its long-awaited 2015 encounter with the Pluto system.
Operators at the Johns Hopkins University Applied Physics Laboratory in Laurel, Md., confirmed at 9:53 … Read the rest of this article
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
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Aurora Oval
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