The last time a person visited the moon was in December 1972, during NASA's Apollo 17 mission. Astronauts say the reasons are ...

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

The roughly six-hour flyby in 1986 revealed Uranus' protective magnetic field was strangely empty. Now, researchers say that ...

Astronomers have identified three ultra-massive galaxies -- nearly as massive as the Milky Way -- already in place within the first billion years after the Big Bang. This surprising discovery was made ...

When Voyager 2 performed the first and only close flyby of Uranus in 1986, scientists were left scratching their heads. Now, ...

PRIMA is being developed as a NASA space telescope with an actively cooled 1.8-meter primary ... whose Isophot camera was ...

In astrophotography, I would say 70% is technique and 30% is the equipment. I spent a lot of time learning the technique behind those incredible images of the galaxies, Zubuyer says ...

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky ...

Using the James Webb Space Telescope, an international cooperation of NASA and the European and Canadian space agencies, a ...

If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...

Andrew Caldwell, Northern Colorado Astronomical Society president Courtesy of NASA/MSFC/David Higginbotham In just a ... that they were involved with developing technology for a new space telescope.

The James Webb Space Telescope has captured imagery of spiral galaxy NGC 7469, which is 90,000 light-years in diameter. The ...