Textbook Notes (362,797)
Canada (158,054)
York University (12,350)
NATS 1745 (40)

term assignment 3.docx

2 Pages
Unlock Document

York University
Natural Science
NATS 1745
Robin Metcalfe

Jasanjit Sekhon Telescope bigger than a Galaxy 212954533 For centuries astronomers and scientist have been observing the sky with a naked eye, up until the invention of a telescope. Using the telescope individuals have been able to discover and look at the events that take place beyond our home planet. Ever since the invention of a telescope astronomers have been building even larger telescope and more powerful than ever, giving them images of events that scientists only would have dreamed about witnessing. The new telescopes are much larger and provide crystal clear views of stars and galaxies which are located million if not billions of light years away. During the 2014 meeting which took place in January the American Astronomical Society discovered an enormous spot in the sky, which is seen through a lens which is more than 500 000 light years wide. But the lens is actually a massive cluster of galaxies called the Abell 2744. The Hubble Telescope, the Spitzer Space Telescope and the Chandra X-ray Observatory has been examining through this lens as a apart of a program known as Frontier Fields. Frontier Fields is a project that will study the universe history of the universe when it was created. Since many of the telescopes are using the Abell 2744 as a lens they were able to discover 3000 distant galaxies, which were magnified more than 10 or 20 times their size and without the use of gravitational lensing those galaxies would be invisible. The researcher or the astronomers have been able to look at or discover more than 3000 galaxies, which are more than thousands of light years away, along with that it was able to give crystal clear quality pictures by using the gravitational lenses. The research is yet far from over it is going to continue and the scientist are searching for more clusters in the sky, which may give them access
More Less

Related notes for NATS 1745

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.