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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:  March 2015 Featured Blog Post The Night Sky:  March 2015 The Night Sky: March 2015

    The Night Sky in March 2015 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon's Phases Full "Worm Moon" or "Sap Moon"... More »

Recently Updated
The Night Sky: March 2015 Last Updated on 2015-02-27 18:44:03 The Night Sky in March 2015 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon's Phases Full "Worm Moon" or "Sap Moon" on the 5th               New Moon on the 20th Stars and Constellations The month of March heralds the transition between the seasons of winter and spring – "in like a lion, out like a lamb." This change becomes apparent in the star patterns in the night sky as well, for the constellations of winter will over the next several weeks be fading into the evening twilight, to be replaced by the generally less spectacular groups of spring. As March opens, Aldebaran in Taurus and the compact star cluster Pleiades are still on display high in the southwest. Just west of overhead is Capella in Auriga, and Betelgeuse and Rigel in Orion are... More »
The Night Sky: February 2015 Last Updated on 2015-01-29 21:16:42 The Night Sky in February 2015 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon's Phases Full "Snow Moon" on the 3rd               New Moon on the 18th Stars and Constellations The stars and constellations of winter (and even a few holdovers from autumn) are out in force on clear, frigid February nights. The constellation Cassiopeia, which represents the throne of the Queen of ancient Ethiopia, can be found high in the northwest, looking like a sideways letter "W." Even higher in the northwest above Cassiopeia is Perseus, with its brightest stars Mirfak and Algol, while nearly overhead on February evenings is Auriga, the Charioteer, with its bright yellow star Capella. Just south of Auriga is Taurus the Bull, with its bright orange star Aldebaran. Aldebaran... More »
The Night Sky: January 2015 Last Updated on 2014-12-31 20:53:26 The Night Sky in January 2015 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon's Phases Full "Wolf Moon" on the 4th               New Moon on the 20th Stars and Constellations For denizens of the Northern Hemisphere, January is the first full month of winter and it usually delivers the coldest temperatures of the year, particularly on clear nights. But those clear nights also serve up views of the spectacular winter star patterns during the later evening hours. Before the winter stars are permitted to parade onto the center stage of the heavens, however, a few remnants of autumn and even of summer nights have yet to bow and depart from that stage. For instance, the stars which form the Summer Triangle – Altair, Vega, and Deneb – can still be glimpsed in... More »
The Night Sky: December 2014 Last Updated on 2014-11-30 21:21:14 The Night Sky in December 2014 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon's Phases Full "Moon before Yule" on the 6th               New Moon on the 21st Stars and Constellations The Sun’s apparent annual path in the sky in December takes it through the southernmost portion of the zodiac. As the month begins, the Sun has just entered (on November 30th) the unofficial 13th zodiac constellation, and is situated just north of Antares in Scorpius. During the next two and a half weeks, the Sun travels across southern Ophiuchus, and on the 18th crosses the constellation border into Sagittarius. A little over three days later, on December 22nd at 12:30 am EST, the Sun reaches its southernmost position in western Sagittarius, marking the official end of autumn... More »
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 »