Hubble captures 30th anniversary image of famous supernova
The NASA/ESA Hubble Space Telescope has been on the front line of observations of SN 1987A since 1990 and has taken a look at it many times over the past 27 years. To celebrate the 30th anniversary of the supernova and to check how its remnant has developed, Hubble took another image of the distant explosion in January 2017, adding to the ...
Two halves have unified to make the James Webb Space Telescope
2019年8月29日 · To combine both halves of Webb, engineers carefully lifted the Webb telescope (which includes the mirrors and science instruments) above the already-combined sunshield and spacecraft using a crane. Team members slowly guided the telescope into place, ensuring that all primary points of contact were perfectly aligned and seated properly.
ALMA: The world’s largest telescope array - spaceanswers.com
2012年11月21日 · High in the Atacama Desert of northern Chile, construction is nearing completion on what will be the biggest telescope array the world has ever seen. Composed of 66 separate radio telescopes, the Atacama Large Millimeter Array (ALMA) is a mammoth project that will allow us to observe the universe with vision ten times sharper than the Hubble ...
NASA wants a new space telescope to protect us all ... - All About …
2019年9月24日 · The telescope turned its focus to asteroids in 2013 under the new moniker NEOWISE, and since then, the telescope has spotted tens of thousands of the space rocks, 135 of which travel in Earth’s immediate neighbourhood. But NEOWISE’s success at its second career was due to luck, not design, and the luck is running out.
Space telescope finds most distant black hole-powered galaxy
2017年1月31日 · NASA’s Fermi Gamma-ray Space Telescope has identified the farthest gamma-ray blazars, a type of galaxy whose intense emissions are powered by supersized black holes. Light from the most distant object began its journey to us when the universe was 1.4 billion years old, or nearly 10 per cent of its present age.
What is an apochromatic telescope? - All About Space
2015年3月27日 · An apochromatic telescope has a multi-lens setup to eliminate chromatic aberration when stargazing. Chromatic aberration is caused by the difference in wavelength of various colours of light. In a single-lens setup, blue light is focussed closer to the lens and it has a shorter focal length. Red light is focussed further away from the lens.
Supernova - spaceanswers.com
SN 1987A was the closest observed exploding star to Earth since the invention of the telescope. News
JWST Update: Spacecraft’s primary mirror fully assembled
Using a robotic arm reminiscent of a claw machine, the team meticulously installed all of Webb’s primary mirror segments onto the telescope structure. Each of the hexagonal-shaped mirror segments measures just over 1.3 metres (4.2 feet) across – about the size of a coffee table – and weighs approximately 40 kilograms (88 pounds).
Hottest and most massive double star found by ground-based …
Using ESO’s Very Large Telescope (VLT), an international team of astronomers have found the hottest and most massive double star with components so close that they touch each other. The two stars in the extreme system VFTS 352 could be heading for a dramatic end, during which the two stars either coalesce to create a single giant star, or ...
Star Trek’s Starship Enterprise nebulae spotted by space telescope
2016年9月10日 · A new infrared image from NASA’s Spitzer Space Telescope may remind fans of the TV series, Star Trek. Since ancient times, people have imagined familiar objects when gazing at the heavens. There are many examples of this phenomenon, known as pareidolia, including the constellations and the well-known nebulae named Ant, Stingray and Hourglass.