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Latest light sources Stories

type_1a_supernova_explosion
2015-05-21 09:27:17

While type Ia supernovae are commonly used to locate dark energy in the universe, their origins have remained somewhat mysterious.

2015-05-13 23:04:30

Industrial lighting specialist Larson Electronics reveals their newly designed Class 1 Division 1 explosion proof string lights with a portable power transformer, which inverts high voltage input

2015-05-05 08:26:01

Leader in energy-efficient lighting expands LED portfolio with color shift technology NEW YORK, May 5, 2015 /PRNewswire/ -- Javits Center -- Booth #840 -- Technical Consumer Products,

2015-05-01 12:23:19

In Partnership with Lattice Power, this Unique LED Filament Bulb Replicates the Warm Glow of an Incandescent Bulb NEWPORT BEACH, Calif., May 1, 2015 /PRNewswire/ -- LUX Technology

2015-04-29 23:02:45

Groundbreaking images of the Sun captured by scientists at NJIT’s Big Bear Solar Observatory (BBSO) give a first-ever detailed view of the interior structure of umbrae – the dark patches in

2015-04-28 23:01:23

Big Bear Observatory Captures Groundbreaking Images of Flaring Solar Flux Ropes Newark, NJ (PRWEB) April 28, 2015 Scientists at NJIT’s Big Bear Solar

2015-04-22 08:45:03

PLYMOUTH, Michigan and HAMBURG, Germany, April 22, 2015 /PRNewswire/ -- ROFIN-SINAR Technologies Inc.

89885_web
2015-04-12 15:33:08

Astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before, and this questions how fast the universe has been expanding.

2015-04-09 23:01:01

The Sun undergoes a type of seasonal variability with its activity waxing and waning over the course of nearly two years, according to new research led by NCAR.


Latest light sources Reference Libraries

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...

Supernova
2004-10-19 04:45:42

Supernova -- A supernova is a star that increases its brightness drastically within a matter of days, making it appear as if a "new" star was born (hence "nova"). The "super" prefix distinguishes it from a mere nova, which also involves a star increasing in brightness, though to a lesser extent and through a much different mechanism. Astronomers have classified supernovae in several classes, according to the lines of different elements that appear in their spectra. The first element...

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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Word of the Day
sudarium
  • A handkerchief.
  • Specifically— The legendary sweat-cloth; the handkerchief of St. Veronica, according to tradition miraculously impressed with the mask of Christ; also, the napkin about Christ's head (Johu xx. 7).
  • In general, any miraculous portrait of Christ.
The word 'sudarium' comes from a Latin word meaning 'a handkerchief'.