Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

The universe’s expansion rate was supposed to be a solved problem, yet the latest high precision map of the early cosmos has ...

Hubble images of interstellar object 3I/ATLAS reveal a sunward anti-tail, showing a teardrop-shaped coma with separated ...

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

New Hubble images show the interstellar object in detail, amid claims by Harvard astrophysicist Avi Loeb that 3I/ATLAS could ...

The image was taken when the exocomet was nearly 178 million miles away from Earth. In its blog describing the new picture, NASA remarked, Because the object comes from outside our solar system, it is ...

Thirty-five years after its launch into space, the Hubble Space Telescope is still wowing us with its views of the universe, and the cosmic mysteries it is helping unlock. On April 24, 1990, the Space ...

According to NASA, Hubble took its latest photo of 3I/ATLAS on November 30 using its Wide Field Camera 3 instrument. At that ...