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Articles by D. Magee
Hubble Goes to the eXtreme to Assemble Farthest Ever View of the Universe
Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind's deepest-ever view of the universe. Called the eXtreme Deep Field, or XDF, the photo was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field. The XDF is a small fraction of the angular diameter of the full Moon.
Hubble anniversary: 25 of the most beautiful images captured by Nasa's space telescope
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The Hubble Space Telescope marks its 25th anniversary this week. Nasa wanted an observatory free of the atmosphere's distortion and light pollution, and sent Hubble into orbit on 24 April 1990, aboard space shuttle Discovery. Excitement turned into agony when it quickly became apparent that the telescope's primary mirror had been botched during manufacturing, resulting in blurry "eyesight". Three years later, a team of astronauts managed to restore Hubble's vision with replacement parts.
By Matt Adams Verified, David Sim, D. Magee, Richard Ellis, G. Illingworth, H. Ford, M. Clampin., G. Hartig, M. Meixner, P. Scowen, K. Kuntz, F. Bresolin, J. Trauger, J. Mould, T. A. Rector
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International Business Times (U.K.)
Verified
Hubble's Greatest Hits
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In April 2014, Hubble data was used to weigh the largest known galaxy cluster in the distant universe—catalogued as ACT-CL J0102-4915—finding it lives up to its nickname, El Gordo (Spanish for "the fat one"). By measuring how much the cluster's gravity warps images of galaxies in the distant background, astronomers calculated El Gordo's mass to be as much as three million billion times the mass of our sun—roughly 43 percent more massive than earlier estimates.
By D. Magee, J. S. Anderson, J. Dalcanton, B. F. Williams, L. C. Johnson, H. E. Bond, J. J. Hester, G. Illingworth, C. R. O'Dell, G. Fritz Benedict, Andrew Howell, Inger Jorgensen, David Chapell, Jeffery Kenney, Andrew Fruchter, H. Ford, M. Clampin., G. Hartig, M. Meixner, P. McCullough, A. Loll, S. Beckwith, M. J. Jee, Holland Ford, T. Sohn, N. Walborn
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National Geographic
Verified
Scientists Discover Hypervelocity Star, Ejected By Supernova, Hurtling Through Milky Way
US 708, first discovered in 2005, was once a normal red giant star in a binary star system. That is, until it was stripped of all its hydrogen and some of its helium by a perpetually hungry orbiting partner, which then detonated in a massive supernova -- an explosion that was so tremendous that it catapulted the ravaged remains of US 708 with a velocity greater than that of any other star in the galaxy.
Astronomers Discover Stellar Clock Coded In A Star's Spin
Astronomers have figured out an innovative way to determine the age of the most common stars in the universe -- sun-like cool stars with a relatively low mass -- by using their rates of spin as a yardstick. The findings, published Monday in the journal Nature, allow scientists to accurately calculate the age of these stars, which have been observed to support the vast majority of Earth-like planets.
Light From 'Orphan Stars' Points Toward Much Brighter Universe Than Presumed
The universe may be much brighter than scientists previously believed as almost half of its stars may be “orphans” hidden in the space between galaxies, according to a paper published in the journal Science. The finding was based on data collected by a suborbital rocket launched by NASA as part of a project named Cosmic Infrared Background Experiment, or CIBER.
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