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Latest Stellar evolution 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.

2015-05-12 23:01:36

SuperCloset is taking indoor growing to new levels.

lopsided star
2015-05-08 09:31:12

By analyzing the remnant of a recently-exploded star, researchers have confirmed what computer models have long predicted – when stellar giants die, they do so in a lopsided fashion, as the core of the star is flung off in one direction and debris is sent flying the opposite way.

ngc6388
2015-04-18 10:38:49

In Star Wars, the Death Star is a massive spaceship capable of destroying a planet with just one shot of its laser, but a recently-discovered white dwarf star may have ripped apart a planet at its core by coming too close to it, making it a real-life Death Star.

3c_397_labels
2015-04-05 11:01:14

NASA studied the 'crime scene' left behind from an explosion of an Ia supernova and discovered that a single white dwarf star is to blame.

typeia1
2015-03-27 12:07:59

Dark energy is so difficult to understand, but this specific type of supernovae could help determine the rate at which the universe is expanding.

The remnant of the nova of 1670 seen with modern instruments
2015-03-23 11:33:26

A mysterious explosion in the sky observed in the 17th century was not a nova, but a much rarer, violent stellar collision.

million stars forming
2015-03-19 12:09:00

Astronomers have identified a previously invisible stellar cluster currently forming over 1 million new stars, according to a report in the journal Nature.

gkper
2015-03-18 13:14:01

For the first time ever, NASA has managed to capture a detailed time-lapse of a "mini supernova," and they believe this catch will have a big impact on studying stellar explosions.

g299
2015-02-12 12:33:54

Because the debris fields of exploded stars, known as supernova remnants, are very hot, energetic, and glow brightly in X-ray light, NASA’s Chandra X-ray Observatory has proven to be a valuable tool in studying them. The supernova remnant called G299.2-2.9 (or G299 for short) is located within our Milky Way galaxy, but Chandra’s new image of it is reminiscent of a beautiful flower here on Earth.


Latest Stellar evolution 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...

7_4b235c0bfbfc8504a41844f9c48ad8962
2004-10-19 04:45:43

Hertzsprung-Russell Diagram -- In stellar astronomy, the Hertzsprung-Russell diagram (H-R diagram) shows the relation between the absolute magnitude and the spectral types of stars. It was invented around 1910 by Ejnar Hertzsprung and Henry Norris Russell. There are two equivalent forms. One is the observer's form which plots the color of the star on one axis and the absolute magnitude on the other axis. The theoretician's form plots the temperature of the star on one axis and the...

White Dwarf
2004-10-19 04:45:43

White Dwarf -- A white dwarf is a a star supported by electron degeneracy. A star like our Sun will become a white dwarf when it has exhausted its nuclear fuel. Near the end of its nuclear burning stage, such a star goes through a red giant phase and then expels most of its outer material (creating a planetary nebula) until only the hot (T > 100,000 K) core remains, which then settles down to become a young white dwarf. A typical white dwarf is half as massive as the Sun, yet only...

6_19859ff34fd03d00777232e2520ce83f5
2004-10-19 04:45:42

Supernova Remnant -- A supernova remnant (SNR) is made up of the materials left behind by the gigantic explosion of a star in a supernova. There are two possible routes to this end: either a massive star may cease to generate fusion energy in its core, and collapse inward under the force of its own gravity, or a white dwarf star may accumulate material from a companion star until it reaches a critical mass and undergoes a similar collapse. In either case, the resulting supernova...

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...

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Word of the Day
chauffeuse
  • A woman chauffeur.
  • A woman who operates an automobile.
The word 'chaffeuse' comes from French, and is the feminine form of 'chauffeur'.
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