Stunning echo: Nasa unveils composite image of 800-year-old supernova remnant – Times of India
NEW DELHI: In a groundbreaking revelation, Nasa has presented a composite image showcasing the remnants of a supernova explosion that lit up the night sky in 1181 AD. Visible for 185 days, this celestial event left behind a nebula known as Pa 30 in the constellation Cassiopeia, challenging scientists for …