The Sky is Waiting.
The many worlds of Pluto! (Credit: NASA/HST/SETI Institute).
By now, you’ve heard the news and read the tweets; Pluto has a fourth moon to accompany Charon, Nix, & Hydra. The discovery announcement came last week from a team of astronomers led by the SETI Institutes’ Mark Showalter utilizing the Hubble Space Telescope. The observation campaign is part of an ongoing effort to survey the environs of Pluto in anticipation of NASA’s New Horizons flyby in July of 2015. [Read more...]
Artist’s Concept of New Horizons at a KBO. (Credit: Dan Durda SwRI/NASA/JPL).
A sky survey has begun this month for a very special mission. In July 2015, NASA’s New Horizons mission will whiz past the Pluto-Charon system on its way out of the solar system. Scientists will collect data on the pair for a frenzied few days…and then what? [Read more...]
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Pictured is a Delta IV rocket launch from Cape Canaveral on November 21st, 2010. The image is a 20 second exposure taken at dusk, shot from about 100 miles west of the launch site. The launch placed a classified payload in orbit for the United States Air Force.
Difficult but not impossible to catch against the dawn or dusk sky, spotting an extreme crescent moon can be a challenge. The slender crescent pictured was shot 30 minutes before sunrise when the Moon was less than 20 hours away from New. A true feat of visual athletics to catch, a good pair of binoculars or a well aimed wide field telescopic view can help with the hunt.
The Sun is our nearest star, and goes through an 11-year cycle of activity. This image was taken via a properly filtered telescope, and shows the Sun as it appeared during its last maximum peak in 2003. This was during solar cycle #23, a period during which the Sun hurled several large flares Earthward. The next solar cycle is due to peak around 2013-14.
Located in the belt of the constellation Orion, Messier 42, also known as the Orion Nebula is one of the finest deep sky objects in the northern hemisphere sky. Just visible as a faint smudge to the naked eye on a clear dark night, the Orion Nebula is a sure star party favorite, as it shows tendrils of gas contrasted with bright stars. M42 is a large stellar nursery, a star forming region about 1,000 light years distant.
Orbiting the planet in Low Earth Orbit (LEO) every 90 minutes, many people fail to realize that you can see the International Space Station (ISS) from most of the planet on a near-weekly basis. In fact, the ISS has been known to make up to four visible passes over the same location in one night. The image pictured is from the Fourth of July, 2011 and is a 20 second exposure of a bright ISS pass.
Next to the Sun, the two brightest objects in the sky are the Moon and the planet Venus. In fact, when Venus is favorably placed next to the Moon, it might just be possible to spot the two in the daytime. Another intriguing effect known as earthshine or ashen light is also seen in the image on the night side of the Moon; this is caused by sunlight reflected back off of the Earth towards our only satellite.
A mosaic of three images taken during the total lunar eclipse of December 21st, 2010. The eclipse occurred the same day as the winter solstice. The curve and size of the Earth’s shadow is apparent in the image.
The Algonquin Indians had names for each of the seasonal Full Moons, many of which survive today. The Full Snow Moon pictured occurs in the month of December, when the first large winter storms coat the ground with snow. This Full Moon also tends to fall near the Winter Solstice, and thus rides high in the nightly sky opposite to the Sun on long winter nights.
Every rocket launch is unique, but twilight shuttle launches where by far the most impressive. The image pictured was of the April 5th, 2010 launch of Space Shuttle Discovery from the Kennedy Space Center at dawn. The exhaust plume caught the rising Sun overhead just right, and numerous noctilucent clouds persisted right up until sunrise. Unfortunately, space shuttle launches are now relegated to the pages of history.
Life in the AstroBlogosphere: February 2014-How Many Space Relics Are Out There?
An artist’s conception of Pioneer 10 drifting silently around the galaxy.
(Credit-NASA).
The Drake Equation may be due an overhaul.
Its fun to sit and think how many extraterrestrial civilizations might be out there. First expressed by astronomer Frank Drake in 1960, the Drake Equation frames the question of how many civilizations might in our galaxy for us to potentially communicate with in mathematical terms. [Read more...]