News by Levels · Level 2 · Student worksheet

Astronomers Investigate an Unusually Bright Afterglow

Name: __________________________ Date: __________________

Read the story

NASA’s Fermi telescope detected a gamma-ray burst called GRB 260310A on March 10. The initial flash appeared modest, but its visible-light afterglow became extremely bright.

An international research team suggests that Earth was outside the main direction of the burst’s jet. As the jet slowed, light could be seen from a wider range of angles. The explanation is a scientific interpretation of the observations.

Source: University of Rome Tor Vergata via Phys.org, 2026-10-29. https://phys.org/news/2026-10-modest-gamma-ray-dazzling-afterglow.html

Read and practise

1. What did NASA’s Fermi telescope detect on March 10?

   1. A gamma-ray burst
   2. A bright afterglow without an initial burst
   3. Radio waves without a gamma-ray flash

2. What do researchers suggest about the jet?

   1. Its main direction was away from Earth
   2. It pointed directly toward Earth
   3. Its main direction changed toward Earth after the flash

Your turn

Describe the difference between the initial flash and the afterglow, and state the proposed viewing angle.

________________________________________________________________
________________________________________________________________
________________________________________________________________

Read online: https://newsbylevels.com/news/gamma-ray-burst-side-view-bright-afterglow-october-2026/level-2/