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Last updated on April 24, 2014 at 12:23 EDT

Latest light sources Stories

2014-02-18 08:23:24

With new lower pricing & robust utility rebate programs, Philips LED bulbs are most affordable on the market SOMERSET, N.J., Feb. 18, 2014 /PRNewswire/ -- Philips, the global leader in lighting, continues to deliver on the company's commitment to making quality LED bulbs more affordable for consumers with its second generation 75-watt and 100-watt LED equivalent bulbs that are now ENERGY STAR (ES) qualified. With utility rebates of up to $10 per bulb, these latest additions to the...

NASA Spacecraft Capture Stunning Views Of Saturn's Dancing Auroras
2014-02-11 13:22:13

[ Watch the Video: Saturn Puts On Quite A Light Show ] Lee Rannals for redOrbit.com - Your Universe Online Two NASA spacecraft captured 360 degree views of Saturn’s northern lights, giving a glimpse as to how the ringed planet looks when bathed in the Sun’s charged particles. Using the Hubble Space Telescope and Cassini, NASA collaborated along with international researchers to put together the footage of the Saturnian show. Hubble provided an ultraviolet wavelength view of the...

2014-02-10 23:04:58

Leading manufacturer and supplier of explosion proof lighting equipment Larson Electronics has announced the release of a new pedestal mount LED light designed for high output and versatile operation. Featuring a powerful 150 watt LED lamp assembly and a simple aluminum base stand with magnetic mount capabilities, this light effectively illuminates 8,000 square feet of work area with 10,000 lumens of light output. Kemp, Texas (PRWEB) February 10, 2014 The EPL-MB-161M-100 magnetic mount...

SkyMapper research team
2014-02-10 08:13:02

Australian National University A team led by astronomers at The Australian National University has discovered the oldest known star in the Universe, which formed shortly after the Big Bang 13.7 billion years ago. The discovery has allowed astronomers for the first time to study the chemistry of the first stars, giving scientists a clearer idea of what the Universe was like in its infancy. "This is the first time that we've been able to unambiguously say that we've found the chemical...

Using Simulations To Chart The Forces Of The Early Universe
2014-02-06 10:13:28

Brett Smith for redOrbit.com - Your Universe Online Most scientific calculations need a reference point to be completed, but what if the calculations are for the beginning of the Universe – where points of reference are somewhat ephemeral? In a new study, published in the Monthly Notices of the Royal Astronomical Society, researchers from The University of Texas at Austin tried to do just that – conduct numerical simulations aimed at charting the forces of the Universe in its first...

Radio Telescope Arrays Can Be Used To Locate Cosmic Heating From The Earliest Black Holes
2014-02-06 05:05:02

[ Watch the Video: Black Holes Heated Gas Later Than Believed ] redOrbit Staff & Wire Reports - Your Universe Online In what is being described as a landmark discovery about the origins of the universe, Tel Aviv University researchers report in the journal Nature that black holes, formed from the first-ever stars, heated the gas throughout space much later than previously believed. In addition, study authors Professor Rennan Barkana of TAU's School of Physics and Astronomy, Dr....

2014-02-05 23:22:36

For a limited time, the Dallas™ LED PAR20 and Chicago™ LED PAR30 are 15% off with coupon code WAVES. Brooklyn, New York (PRWEB) February 05, 2014 New York City lighting supplier and manufacturer LED Waves has announced a two-week sale on two of their exclusive energy-saving LED PAR lamps. Both 9 Watt replacements for 75 Watt halogen spot light bulbs, the Dallas™ Dimmable PAR20 and the Chicago™ Dimmable PAR38 are among the most consumer-friendly products from the full line of LED...

2014-01-30 20:20:09

OAKLAND, Calif., Jan. 30, 2014 /PRNewswire-USNewswire/ -- Chabot Astronomers are tracking the latest supernova about 12 million light years away. Identified as "2014J," a Type 1A supernova, the phenomenon is occurring in Messier-82 (M82), also known as the Cigar Galaxy. Supernovae occur when a star explodes emitting a massive amount of energy in a short span of time; the star literally collapses under its own gravity. 2014J actually exploded about 12 million...

2014-01-28 23:04:01

The 12v California™ LED light bulb is $5 off with coupon code WAVES. Brooklyn, New York (PRWEB) January 28, 2014 Lighting supplier and manufacturer LED Waves has announced a week-long sale on the California™ LED MR16 light bulb. A direct plug & play replacement for a 12v halogen lamp, the California is the latest low-volt product from the company’s exclusive line of LED lights made in the USA. Now through Tuesday, February 4th 2014, online customers save $5 on the California LED...

supernova
2014-01-26 05:13:55

[ Watch the Video: What Interstellar Blast Is Lighting Up The Sky? ] redOrbit Staff & Wire Reports - Your Universe Online Several NASA spacecraft and Earth-based observatories, including the Hubble Space Telescope and the Chandra X-ray Observatory, are studying an incredibly close supernova that took place on January 21, officials from the US space agency announced on Friday. The stellar explosion, which has been designated SN 2014J, lies approximately 12 million light-years away...


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Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

4_a9775d2328a386c7976f6f9895c6d2ac2
2004-10-19 04:45:40

The Sun -- intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other bodies of the solar system in their orbits. The sun is actually a star of about medium size; it appears larger than the other stars because of its relative nearness to the earth. The earth's distance from the sun varies from 91,377,000 mi (147,053,000 km) at perihelion to 94,537,000 mi (152,138,000 km) at aphelion (see apsis). The...

3_5b8f828cdf6b44752884e721c0a2e6bd2
2004-10-19 04:45:40

Crab Nebula -- The Crab Nebula (Messier 1, NGC 1952) is the object the which started Charles Messier logging non-cometary objects on his Messier Catalog. It is the expanding cloud of gas thrown off in the explosion that gave rise to the 1054 supernova recorded by Chinese astronomers, now more than 6 light years across (the nebula is currently expanding at 1000 km/sec and the total mass of ejected material is about 0.1 solar masses). The supernova which produced it was bright enough to...

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