astronomer-in-progress:

Supernova SN1994d, the type of supernova first used to measure the acceleration of the Universe. 
Image credit: NASA/ESA/Hubble Key Project/High-Z Supernova Search
The Carnival of Cosmology: Bloggers on Dark Energy

astronomer-in-progress:

Supernova SN1994d, the type of supernova first used to measure the acceleration of the Universe.

Image credit: NASA/ESA/Hubble Key Project/High-Z Supernova Search

The Carnival of Cosmology: Bloggers on Dark Energy