Gamma Ray Burst: Most Mysterious and Energetic Event after Big Bang

gamma-ray burst
Artist’s illustration of a bright gamma-ray burst occurring in a star-forming region. Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones

Gamma Ray Burst (GRB) are the most powerful burst in the entire universe after big bang. GRBs outshine every gamma source in the sky even the sun. They brightness is more than hundred times the brightness of the normal supernovae. Since the gamma rays have the highest energy in all the electromagnetic radiation, they are the most lethal for any life form. The Gamma Ray Bursts are able to devastate the life on Earth if happens to occurs in the neighbourhood of the solar system. Continue reading “Gamma Ray Burst: Most Mysterious and Energetic Event after Big Bang”

What is a Nebula?

Carina Nebula
Nebula are huge clouds of gases. Carina Nebula photographed by Hubble Telescope

Sky is full of interesting objects, one of which is nebula. You must have seen the beautiful images of nebulae like Crab Nebula, Orion Nebula, and Ring Nebula etc. These objects are named so differently because of their unique appearances which sometimes look like animals, eyes, rings and other familiar objects. Have you ever wondered what these beautiful structures are? How does such amazing structure form? Continue reading “What is a Nebula?”

Eta Carinae Nebula and star system explained by impressive 3D model of NASA

Eta Carinae Nebula
Eta Carinae’s great eruption in the 1840s created the billowing Homunculus Nebula.
Image Credit: NASA, ESA, and the Hubble SM4 ERO Team

Eta Carinae is one the most massive and luminous star system in the vicinity of 10000 light years around the solar system. The Eta Carinae star is known for its violet behaviours in the past. In the mid 19th century, it had become so violet and bright that it had become the second brightest star in the sky. During that time it ejected huge amount of mass that can be used to create 10 new Suns. The reason of that tremendous outburst is still not clear. The nebula created Continue reading “Eta Carinae Nebula and star system explained by impressive 3D model of NASA”

What is Supernova Explosion?

Supernova Explosion
Gamma rays released in the Supernova Explosion are harmful for life. (Credit: NASA)

Supernova explosion is one of the violent explosions of the universe which outshines the entire galaxy. The supernova explosion releases tremendous amount of energy and light into the interstellar medium. The brightness of supernova is so large that it can be seen from the billions of light years away. The brightness of supernova is sometimes even larger than the brightness of galaxy in which it occurred. The supernova also releases radiations like gamma rays which can beĀ  Continue reading “What is Supernova Explosion?”