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Cosmos Portal

Welcome to the Cosmos Portal

The Cosmos Portal  is a gateway on the Web to astronomy and space science. We invite astronomy professionals to publish articles, blogs, news items, image galleries, videos, class notes, lectures, powerpoint presentations, links to other high quality websites or other educational material.   LEARN MORE »

In parallel amateur astronomy organizations and amateur astronomers and telescope makers are invited to start websites in the Community Sites.   LEARN MORE »

TOPIC OF THE WEEK:
GALAXIES

  • Curiosity Rover Featured News Article Curiosity Rover Curiosity Rover

    The Curiosity Rover is designed to examine Martian rocks and soils. Two instruments on its arm can study rocks up close, a drill can collect sample material and a scoop can... More »

  • International Space Station Featured Article International Space Station International Space Station

    The goals of the International Space Station (ISS) are to establish a permanent habitable residence and laboratory for science and research, and to maintain and support a human... More »

  • XMM-Newton Featured Article XMM-Newton XMM-Newton

    The European Space Agency's X-ray Multi-Mirror satellite is the most powerful X-ray telescope ever placed in orbit. Scientists are sure the mission will help solve many cosmic... More »

  • 'We Are All Connected' Featured Video 'We Are All Connected'

    "We Are All Connected" was made from sampling Carl Sagan's Cosmos, The History Channel's Universe series, Richard Feynman's 1983 interviews, Neil deGrasse Tyson's... More »

  • The Night Sky:  November 2014 Featured Blog Post The Night Sky:  November 2014 The Night Sky: November 2014

    The Night Sky in November 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Frost Moon" on the... More »

Recently Updated
The Night Sky: November 2014 Last Updated on 2014-10-31 23:51:35 The Night Sky in November 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Frost Moon" on the 6th                    New Moon on the 22nd Stars and Constellations November is a fine month for stargazing, since on clear nights one can view not only the usual autumn star groups but also a few remaining summer groups, such as the summer triangle of Vega, Deneb, and Altair high in the west at dusk. Once our clocks have been set back to Standard Time, coupled with darkness falling progressively earlier each night as autumn progresses toward winter, stargazing becomes possible as early as 5 pm by the end of the month. The signature autumn constellation, the Great Square of Pegasus, consisting of four stars, Markab, Scheat,... More »
The Night Sky: October 2014 Last Updated on 2014-10-03 16:57:53 The Night Sky in October 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Hunter's Moon" on the 8th                    New Moon on the 24th Stars and Constellations October is a month of change. It is the first full month of autumn, with leaves beginning to turn color from green to yellow, orange, or red, and then falling to the ground. Average daytime and nighttime temperatures become much cooler toward the end of the month than they are at the beginning. And in the sky the stars of autumn are in full splendor late on clear October nights. Nightfall comes noticeably earlier than it did back in September – the Sun sets before 6:30 pm in mid-October – and so at this time of year stargazing can begin... More »
The Night Sky: September 2014 Last Updated on 2014-08-29 17:36:33 The Night Sky in September 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Harvest Moon" on the 8th          New Moon on the 24th Stars and Constellations The Autumnal Equinox occurs on September 22nd at 10:29 pm, marking the official start of autumn in the Northern Hemisphere. At this time (and again in March) the Earth's axis is tilted neither toward nor away from the Sun, and so the durations of day and night are equal at 12 hours each; thereafter the duration of darkness dominates over daylight until the Spring Equinox next March. The formal arrival of autumn notwithstanding, the majority of summer stars and even a few spring stars are still well placed for viewing during the early evening hours. The brightest of these is orange-colored Artcurus in the... More »
The Night Sky: August 2014 Last Updated on 2014-07-31 18:58:17 The Night Sky in August 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Sturgeon Moon" or "Green Corn Moon" on the 10th          New Moon on the 25th Stars and Constellations As soon as darkness falls on August evenings, the first star to appear is orange-yellow Arcturus, which stands high in the west about an hour or so after sunset. The Big Dipper, a part of the constellation Ursa Major, is now dipping lower toward the northwestern horizon. The two front stars in the Big Dipper point to Polaris, the North Star, while the arc of the Big Dipper's handle leads to Arcturus. If the sky is dark enough, you may be able to see the Little Dipper, which is part of Ursa Minor, extending outward from Polaris toward the Big Dipper. One of the remaining stars of... More »
The Night Sky: July 2014 Last Updated on 2014-06-30 23:59:01 The Night Sky in July 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases Full "Thunder Moon" on the 12th            New Moon on the 26th Stars and Constellations On July evenings one must patiently wait until after 9 pm for the sky to become dark enough to make out the basic constellation patterns. This fact, along with the increased haze and humidity in mid-summer, presents challenges for the stargazer. Once twilight fades into night, you should be able to spot orange Arcturus high in the south. Arcturus is classified as a giant star, with a diameter of over 30 times that of our Sun, and lies about 37 light years from our solar system. Two of the brightest stars of spring are disappearing into the evening twilight. Blue-white Regulus is moving toward the western... More »