GRB 070125 is a gamma-ray burst (GRB) that occurred on 2007 January 25. It is unique in that it did not occur in a galaxy, but in intergalactic space. This is unusual, since this type of GRB are caused by hypernovae of young massive stars, which usually means having to reside in a galaxy, as almost all stars are formed in galaxies, particularly high mass ones. It has a redshift of 1.55, which equals to a light travel distance of 9.5 billion years.
|Event type||Gamma-ray burst|
|Other designations||GRB 070125|
- "A Gamma-Ray Burst Out of Nowhere". Sky and Telescope. 18 December 2007. Retrieved 2019-08-22.
- William G. Gilroy. "First science from the Large Binocular Telescope: Notre Dame astrophysicist reports gamma ray finding". Archived from the original on 2009-05-02. Retrieved 2009-08-09.