Chandra X-ray Observatory imagery reveals Tycho's supernova remnant, showcasing a blue outer shell of high-energy electrons from the initial shockwave and red/green debris illuminated by a rebounding ...

Look up and you might see the bright constellation Cassiopeia trace a zig-zag across the sky as it seemingly always has. But almost 450 years ago, it was the source of surprise: A bright flash, ...

A supernova explosion first seen from Earth 436 years ago has come back to life for astronomers in a time-travel-like astronomical twist. By observing light from supernova SN 1572 that was slowed on ...

Danish astronomer Tycho Brahe saw a "new and unusual star" in the November 1572 sky. He called it a new star, or "stella nova". This astronomical event changed the way the scientific world viewed the ...

All but one of the stars found are either main-sequence stars (luminosity class V) with spectral types A4–K3 or giant stars (luminosity class III) with spectral types G0–K3. Several paths lead to this ...

For the first time, country’s dedicated multi-wavelength astronomy satellite, Astrosat, has captured an X-ray image of the debris of a supernova. Called SN 1572, the supernova is located 10,000 light ...