Tuesday, July 16, 2019

Go For Launch


Today's Astronomy Picture of the Day is a short video showing the launch of Apollo 11, bringing humans to another sphere for the last time. Why haven't we been back?

Monday, July 15, 2019

Sunday, July 14, 2019

Northern Eagle


Today's Astronomy Picture of the Day brings us an image of auroral activity over the skies of Norway. If might be worth the long winters just for such a sight!

Saturday, July 13, 2019

Dimensional Eagle


Today's Astronomy Picture of the Day is an anaglyph (three-dimensional image) of the ascent stage of the Eagle, the Lunar Module that first brought humans to the surface of another sphere. Fifty. Years. Ago.

Friday, July 12, 2019

Irregulars


Today's Astronomy Picture of the Day is an image of a class of galaxy known as "irregular", meaning it does not have the familiar spiral shape. What causes this shift in galaxies such as NGC 55 or our satellite galaxies of the Large and Small Magellanic Clouds. Passages or collisions with other galaxies? Galaxy-wide singularities? The Great Old Ones?

Thursday, July 11, 2019

Halo Effect


Today's Astronomy Picture of the Day focuses on NGC 3242, popularly known as The Ghost of Jupiter. This "planetary" nebula is actually the remnant of a nova. Not as easily seen by the "backyard observer" are the extended waves of nebular matter outside the central nebula: sucessive shockwaves of gas traveling out from the central star.

Wednesday, July 10, 2019

Beyond the Home System


Today's Astronomy Picture of the Day is a short video depicting the locations of the over 4,000 (yes, four thousand) planets (exoplanets) found outside of our solar system. These have been discovered using procedures such as microlensing, using both ground-based and space-based systems (such as Kepler and TESS).

Tuesday, July 9, 2019

Monday, July 8, 2019

MeerKATs Online


Today's Astronomy Picture of the Day brings us an image built from data at the radio range (hence, not "visible" to the ordinary person). The MeerKAT array peers at the center of our galaxy to see what is lurking there. "Mouseover" the image in the link for details.

The MeerKAT is only the precursor for the Square Kilometer Array. Can't wait to find out what that learns when it comes online!

Sunday, July 7, 2019

Saturn's Shadow


Today's Astronomy Picture of the Day shows a partial (crescent) Saturn plus the long shadow cast by the planet upon the ring system. Views like these can only come courtesy of visitors that fly past (e.g., Pioneer or Voyager) or orbit (Cassini). Here's hoping somebody funds another orbiter like Cassini!

Saturday, July 6, 2019

Chasing Shadows


Today's Astronomy Picture of the Day shows the point of totality during the solar eclipse of July 2, 2019. The image was taken from a rather unique vantage point: a chase plane which was following the shadow of the Moon during the eclipse.

Friday, July 5, 2019

Eclipse Sequence


Today's Astronomy Picture of the Day shows the July 2, 2019 solar eclipse from first contact to last from the La Silla Observatory in Chile.

Thursday, July 4, 2019

Wednesday, July 3, 2019

Dragonfly


Today's Astronomy Picture of the Day is a short video showing one of the proposed missions for the next generation of solar system exploration. The Dragonfly mission would deploy a small helicopter to Saturn's moon Titan, home to an atmosphere with a rich and interesting chemistry, weather, lakes (just not of water) and possibly...life (?).

Tuesday, July 2, 2019

Rich Fields


Today's Astronomy Picture of the Day is a processed image from the Hubble Space Telescope (there seems to be quite an industry of "amateur" astronomers working with data from professional instruments!) of NGC 1566, a face-on spiral in the constellation of Dorado (the "Dolphinfish"). Another beautiful spiral with dust lanes, blue clusters and red star-forming regions! I could look at these for hours and hours.

Monday, July 1, 2019

Coronal Activity


Today's Astronomy Picture of the Day shows coronal activity, solar prominences and even the faint face of the Moon in this image from the August 2017 solar eclipse.

Saturday, June 29, 2019

Ruby Pinwheel


Today's Astronomy Picture of the Day is an image combining data from several instruments of Messier 83, The Southern Pinwheel, studded by dust lanes, blue star clusters and red star-forming regions.

Friday, June 28, 2019

Thursday, June 27, 2019

Koyaanisqatsi


Today's Astronomy Picture of the Day is an image of a solargraph, a picture taken by a pinhole camera in a fixed position over a period of six months.

Wednesday, June 26, 2019

Smoke on the Water


Today's Astronomy Picture of the Day shows noctilucent clouds above and below, as the wispy strands in the sky are reflected in the waters of a lake in the Netherlands.

Tuesday, June 25, 2019

Degrees of Magnitude


Today's Astronomy Picture of the Day shows the twenty-five brightest (visible to the naked eye) stars of the sky in their true colors.

Monday, June 24, 2019

Sunday, June 23, 2019

Across the Universe


Today's Astronomy Picture of the Day is a wide view from The Hubble Space Telescope of the rich regions of the Carina Nebula. "Mouseover" the image in the link for a guide.

Saturday, June 22, 2019