For the past 35 years, an unusual radio signal from deep space has continued to reach Earth at regular intervals — every 22 ...

In 1974, using the Arecibo Radio Telescope, Joseph Taylor and Russell Hulse discovered a binary pulsar: two orbiting ... the resulting pattern that the light forms is sensitive to minute ...

Astronomers have described the first measurements of plasma layers within an interstellar shock wave that surrounds a pulsar.

Democrats on the Senate intelligence panel hammered Trump administration officials on Tuesday about their participation in a group chat on Signal that ... it a disturbing pattern of sloppy ...

Democrats stretching back nearly a decade have touted the use of the encrypted messaging app Signal, long before the Trump administration came under the national spotlight for using the app to ...

Scandal surrounding the Trump administration’s Signal group chat has led to a landmark week for the encrypted messaging app’s adoption—its “largest US growth moment by a massive margin.” ...