Categories: Hubble

The New and Improved Hubble Ultra Deep Field

It’s perhaps one of the most famous images in astronomy. The Hubble Ultra Deep Field displays nearly 10,000 galaxies across the observable Universe in both visible and near-infrared light. The smallest, reddest galaxies are among the youngest known, existing when the Universe was just 800 million years old.

But now, with the addition of ultraviolet light the renowned image is even better than ever.

“We’ve taken new observations with the Hubble Space Telescope and made a new image of this very famous region of the sky — the Hubble Ultra Deep Field — which gives us one of the most comprehensive pictures of galaxy evolution ever obtained,” said Harry Teplitz from Caltech, in a talk presented at the American Astronomical Society meeting in Boston today.

The image has undoubtedly captured the minds of amateurs and provided astronomers with a wealth of data, from which to study galaxies in their most primitive stages.

But there was a caveat: without ultraviolet light, which tells us about the youngest and hottest stars, there was a significant gap in our understanding of these forming galaxies. Between 5 and 10 billion light-years away from us — corresponding to a time period when most of the stars in the Universe were born — we were left in the dark.

Compare the new image to an older version:

The original Hubble Ultra-Deep Field (Credit NASA, ESA, and S. Beckwith (STScI) and the HUDF Team).

Now, with the addition of ultraviolet data to the Hubble Ultra Deep Field, astronomers can see unobscured regions of star formation throughout this time period. It will help us understand how galaxies grew in size from small collections of very hot stars — now visible across the observable Universe — to the elegant structures we see today.

Here’s a ‘pan and zoom’ video version of the new image:

For more information on the new and improved Ultra Deep Field, check out the HubbleSite.

Shannon Hall

Shannon Hall is a freelance science journalist. She holds two B.A.'s from Whitman College in physics-astronomy and philosophy, and an M.S. in astronomy from the University of Wyoming. Currently, she is working toward a second M.S. from NYU's Science, Health and Environmental Reporting program. You can follow her on Twitter @ShannonWHall.

Recent Posts

New Study Addresses how Lunar Missions will Kick up Moondust.

Before the end of this decade, NASA plans to return astronauts to the Moon for…

5 hours ago

How Warm Are the Oceans on the Icy Moons? The Ice Thickness Provides a Clue.

Scientists are discovering that more and more Solar System objects have warm oceans under icy…

7 hours ago

NASA Tests the New Starship Docking System

The Apollo Program delivered 12 American astronauts to the surface of the Moon. But that…

10 hours ago

China Has Built a Huge Space Simulation Chamber

Well it certainly caught my attention when I saw the headlines  “China’s first Space Environment…

15 hours ago

The International Space Station’s Air Leaks are Increasing. No Danger to the Crew

Only the other week I had to fix my leaky tap. That was a nightmare. …

17 hours ago

Planetary Atmospheres: Why study them? What can they teach us about finding life beyond Earth?

Universe Today has surveyed the importance of studying impact craters, planetary surfaces, exoplanets, astrobiology, solar…

1 day ago