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Posts by Deborah Byrd

The sculptor galaxy - also known as NGC 253 - is an example of a disk galaxy.  It has a flat, circular disk containing gas, dusk and most of the galaxy's stars.  Image via Wikimedia Commons.
Science Wire | Sep 17, 2014

Merging galaxies can produce disk galaxies

Astronomers thought mergers formed giant elliptical galaxies. Now, for at least 24 observed galaxies, mergers have formed flattened, circular disks of dust and gas.

NASA Earth Observatory images created by Jesse Allen, using digital photographs provided by Kelly Brunt, MABEL campaign.
Science Wire | Sep 16, 2014

Earthquake-induced landslide at Seward Glacier

NASA scientists were in the right place at the right time this summer to capture photos of a fresh landslide, caused by an Alaska earthquake.

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Science Wire | Sep 16, 2014

New catalog of visible Milky Way charts 219 million stars

Astronomers spent 10 years charting stars brighter than 20th magnitude – that’s about 1 million times fainter than can be seen with the human eye.

Hurricane Odile on September 14 via Jeff Schmaltz, LANCE/EOSDIS Rapid Response.
Today's Image | Sep 16, 2014

Hurricane Odile

Hurricane Odile tied Olivia (1967) as the strongest hurricane to make landfall in Baja California in the satellite era.

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Today's Image | Sep 13, 2014

Favorite photos of September 12 aurora

Two powerful storms on the sun this week resulted in beautiful displays of the aurora borealis, or northern lights, that dipped down as far as the northern U.S.

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Tonight | Sep 13, 2014

Moon and Pleiades late night September 13 until dawn

No pattern in the sky is so little and yet so clearly shaped like a dipper. Look for the Pleiades late at night or before dawn. The moon is near it tonight!

This artist's conception shows the object named WISE J085510.83-071442.5. Imabe courtesy of NASA/JPL-Caltech/Penn State University
Science Wire | Sep 12, 2014

First evidence for water-ice clouds outside our solar system

The first evidence for water-ice clouds on an object beyond our solar system. It’s a brown dwarf, one of our closest neighbors, only 7 light-years away.

This is an artist's concept of a quasar: a supermasive black hole at the center of a faraway galaxy.  Image via European Southern Observatory
Science Wire | Sep 11, 2014

Astronomers solve 20-year-old quasar mystery

New works suggests most observed quasar phenomena depend on two things: how efficiently a central black hole is being fed and the astronomer’s viewing orientation.

The moon before, during and after the crest of the moon's full moon, September 2014, by Pete Miramontes
Today's Image | Sep 11, 2014

Harvest Moon trilogy

This past full moon was the Northern Hemisphere’s Harvest Moon, known for appearing entirely or nearly full for several nights in a row.

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Tonight | Sep 11, 2014

How to see the Summer Triangle in September

Even as autumn is beginning, you have several more months to see the large asterism known as the Summer Triangle.