Cosmic Times-Related Press
Scientific discoveries are happening all the time, so it can be hard to keep up! Here, we have collected some of the latest press from NASA that is related to topics covered by Cosmic Times.
The links on this page are to NASA press releases. For the most part, the images and videos on the linked pages fall within NASA's usage policy, which means they can be used in mash-up projects. However, be sure to check any particualr image or video for specific copyrights before using it. Also, make sure to give credit for any media you use. For a list of matierals to use in a mash-up, visit the Universe Mash-up Archive.
Relativity
- NASA's Gravity Probe B Confirms Two Einstein Space-Time Theories
- NASA's Gravity Probe B (GP-B) mission has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test.
- Fermi Telescope Caps First Year With Glimpse of Space-Time
- During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than 1,000 discrete sources of gamma rays -- the highest-energy form of light. Capping these achievements was a measurement that provided rare experimental evidence about the very structure of space and time, unified as space-time in Einstein's theories.
Dark Energy
- NASA Telescope Helps Confirm Nature of Dark Energy
- May 19, 2011 A five-year survey of 200,000 galaxies, stretching back seven billion years in cosmic time, has led to one of the best independent confirmations that dark energy is driving our universe apart at accelerating speeds. The survey used data from NASA's space-based Galaxy Evolution Explorer and the Anglo-Australian Telescope on Siding Spring Mountain in Australia.
- NASA Officially Joins ESA's 'Dark Universe' Mission
- January 24, 2013 NASA has joined the European Space Agency's (ESA's) Euclid mission, a space telescope designed to investigate the cosmological mysteries of dark matter and dark energy.
Cosmic Microwave Background
- Planck Mission Brings Universe Into Sharp Focus
- March 21, 2013 The Planck space mission has released the most accurate and detailed map ever made of the oldest light in the universe, revealing new information about its age, contents and origins.
- NASA's WMAP Project Completes Satellite Operations
- October 6, 2010 After nine years of scanning the sky, the Wilkinson Microwave Anisotropy Probe (WMAP) space mission has concluded its observations of the cosmic microwave background, the oldest light in the universe. The spacecraft has not only given scientists their best look at this remnant glow, but also established the scientific model that describes the history and structure of the universe.
Dark Matter
- Hubble Uncovers Largest Known Group of Star Clusters, Clues to Dark Matter
- September 12, 2013 NASA's Hubble Space Telescope has uncovered the largest known population of globular star clusters, an estimated 160,000, swarming like bees inside the crowded core of the giant grouping of galaxies known as Abell 1689. An international team of astronomers used Hubble's Advanced Camera for Surveys to discover this bounty of stellar fossils and confirm such compact groupings can be used as reliable tracers for dark matter, the invisible gravitational scaffolding on which galaxies are built.
- Fermi Observations of Dwarf Galaxies Provide New Insights on Dark Matter
- April 2, 2012 Scientists working with data from NASA's Fermi Gamma-ray Space Telescope have looked for signals from hypothetical particles, candidates for dark matter, by zeroing in on 10 small, faint galaxies that orbit our own. Although no signals have been detected, a novel analysis technique applied to two years of data from the observatory's Large Area Telescope (LAT) has essentially eliminated these particle candidates for the first time.
- Herschel Measures Dark Matter for Star-Forming Galaxies
- February 16, 2011 The Herschel Space Observatory has revealed how much dark matter it takes to form a new galaxy bursting with stars. Herschel is a European Space Agency cornerstone mission supported with important NASA contributions. The findings are a key step in understanding how dark matter, an invisible substance permeating our universe, contributed to the birth of massive galaxies in the early universe.
- Shedding 'Bent' Light on Dark Matter
- November 11, 2010 Astronomers using NASA's Hubble Space Telescope took advantage of a giant cosmic magnifying glass to create one of the sharpest and most detailed maps of dark matter in the universe. Dark matter is an invisible and unknown substance that makes up the bulk of the universe's mass.
Type 1a Supernovae
- NASA Spacecraft Take Aim At Nearby Supernova
- January 24, 2014 An exceptionally close stellar explosion discovered on Jan. 21 has become the focus of observatories around and above the globe, including several NASA spacecraft. The blast, designated SN 2014J, occurred in the galaxy M82 and lies only about 12 million light-years away. This makes it the nearest optical supernova in two decades and potentially the closest type Ia supernova to occur during the life of currently operating space missions.
- NASA's Chandra Reveals Origin of Key Cosmic Explosions
- February 17, 2010,/b> New findings from NASA's Chandra X-ray Observatory have provided a major advance in understanding a type of supernova critical for studying the dark energy that astronomers think pervades the universe. The results show mergers of two dense stellar remnants are the likely cause of many of the supernovae that have been used to measure the accelerated expansion of the universe.
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