On one of the largest panoramic views of star birth, astronomers using the ultraviolet vision of NASAs Hubble telescope have assembled an image that features approximately 15,000 galaxies, about 12,000 of which are forming stars.
This image is a portion of the GOODS-North field, which is located in the northern constellation Ursa Major, NASA said in a statement Thursday.
The image straddles the gap between the very distant galaxies, which can only be viewed in infrared light, and closer galaxies, which can be seen across a broad spectrum.
The light from distant star-forming regions in remote galaxies started out as ultraviolet, but the expansion of the universe shifted the light into infrared wavelengths.
By comparing images of star formation in the distant and nearby universe, astronomers glean a better understanding of how nearby galaxies grew from small clumps of hot, young stars long ago, NASA said.
Because Earth’s atmosphere filters most ultraviolet light, Hubble can provide some of the most sensitive space-based ultraviolet observations possible. (IANS)
A U.S. astronaut said on Thursday she had full confidence in the safety of the Russian-made Soyuz rocket that will blast a three-person crew into space next month in the first such launch since a rocket failure.
Russian cosmonaut Oleg Kononenko and U.S. and Canadian astronauts Anne McClain and David Saint-Jacques are due to embark for the International Space Station on Dec. 3 after a similar launch on Oct. 11 ended in an emergency landing.
Two minutes into that launch, a rocket failure forced Russian cosmonaut Alexei Ovchinin and U.S. astronaut Nick Hague to abort their mission and hurtle back to Earth in a capsule that landed in the Kazakh steppe. The two were unharmed.
Speaking at a news conference in Star City near Moscow, McClain said that occasional failures were inevitable, but that the mishap with the Soyuz-FG in October had demonstrated the reliability of its emergency safety mechanisms.
“We trust our rocket. We’re ready to fly,” she said at the conference also attended by her colleagues Kononenko and Saint-Jacques.
“A lot of people called it an accident, or an incident, or maybe want to use it as an example of it not being safe, but for us it’s exactly the opposite because our friends came home,” McClain told reporters.
Russian investigators said the rocket failure was caused by a sensor that was damaged during assembly at the Soviet era-cosmodrome at Baikonur from where McClain, Saint Jacques and Kononenko are due to launch.
Ahead of their mission, an unmanned rocket carrying cargo is due to launch on Nov 16. in what will be the first Soyuz-FG take-off from Baikonur since the mishap. (VOA)