Mysterious radio waves detected from outer space

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope has detected radio waves from outer space, identifying 8 new repeating signals. These Fast Radio Bursts (FRBs) last only a few milliseconds but can emit more energy than 500 million Suns. CHIME, equipped with four cylindrical reflectors and 256 antennas, continuously scans the sky for FRBs. A previous study published in Nature reported 13 FRBs, with only one repeating. Repeating signals tend to last longer than non-repeating ones.

What is the CHIME radio telescope known for detecting?

• Ultraviolet light

• X-rays

• Gamma rays

• Radio waves from outer space

How many new repeating signals were detected by CHIME?

• 8

• 12

• 10

• 5

What is the typical duration of a Fast Radio Burst?

• A few hours

• A few minutes

• A few milliseconds

• A few seconds

How many antennas line each cylindrical reflector of the CHIME telescope?

• 1024

• 256

• 512

• 128

What was a key observation about repeating FRBs in the study published in Nature?

• They last longer than non-repeating ones

• They are more frequent than non-repeating ones

• They are less energetic than non-repeating ones

• They are detected only during the day