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Tag: astronomy

Dark laboratories of the universe

Posted August 29, 2017 by Jennifer Sieben

A comparison of the dwarf galaxy IC 1613 as seen in two different wavelengths. The image on the left is light blue and is populated with many specks of light against a nearly black background. This is the ultraviolet. The image on the right is visible light and only a few bright white stars stand out with a patch of haze in the center.

Although only our neighboring galaxy, Andromeda, is visible with the unaided eye in the Northern hemisphere, there is a wide variety of galaxies in our universe. Grand spirals dominate the covers of many textbooks and irregular galaxies are the subject of many motivational posters, but the universe is dominated by small dwarf galaxies. To study… Read more »

Get ready for the Great American Eclipse of 2017!

Posted August 18, 2017 by Maria Tiongco

Are you one of the lucky ones who has seen a total solar eclipse in person?  Whether you are a solar eclipse veteran or have yet to see your first one, the Great American Eclipse is coming Monday, August 21, 2017!  All of North America will be able to see the Moon cover at least… Read more »

Globular cluster simulator: Can your PC handle it?

Posted July 4, 2017 by Maria Tiongco

An image of hundreds of thousands of small points representing stars with streaks showing their motion. The points and trails are the most dense in the center, and decrease in density outward.

If you are a video game enthusiast, you might be familiar with the importance of the graphics processing unit, or the GPU. The GPU determines whether you can play a game with all the fancy visual effects turned on, how high you can set the screen resolution, and how many frames (the images you see… Read more »

An introduction to spectroscopy: Applications from astronomy to art

Posted June 13, 2017 by Ed Basom

Astronomers have a favorite saying that if a picture is worth a thousand words, then a spectrum is worth a thousand pictures. A spectrum is measured by the scientific technique known as spectroscopy, and unless you’re already familiar with the term, this may compel you to ask: what is spectroscopy? The short answer is that… Read more »

The need of our times: Support for fundamental science research

Posted March 14, 2017 by Karna Desai

If you are an undergraduate student, you probably share some attributes with other readers of this blog. You are likely a millennial, meaning that you may not remember the fall of the Berlin wall, and to you, the space race is a distant past. Federal funding for “fundamental” or “basic” science research was at the all-time… Read more »

Star clusters: Star families come in all ages, shapes and sizes

Posted September 20, 2016 by Maria Tiongco

Have you ever taken time to gaze at the stars on a clear night, either with a casual eye or a telescope?  If so, you might have seen the famous star cluster, the Pleiades, without even knowing it! Known as the Seven Sisters from Greek mythology, it is a bright and compact group of stars…. Read more »

Early evolution of protoplanetary disks

Posted August 26, 2016 by Karna Desai

Anyone growing up in the 1990s or earlier would recollect that our solar system had nine planets, but did you ever wonder if planets exist outside the solar system? Planets found outside of our solar system are called extrasolar planets or exoplanets. Approximately 5,600 exoplanet candidates have been discovered since 1993, and nearly 2,000 exoplanets have… Read more »

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