Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

A grand spiral galaxy takes center stage in a new image from the Hubble Space Telescope. The galaxy, known as NGC 5643, is ...

The Hubble Space Telescope has peered deeper than ever before into the heart of the supermassive black hole-powered quasar 3C ...

The Hubble Space Telescope has been imaging the outer planets of our solar system for a decade, learning about their strange ...

This NASA/ESA Hubble Space Telescope image features the glorious spiral galaxy NGC 5643, which is located roughly 40 million ...

NASA and ESA’s Hubble Space Telescope has been observing the outer planets through a program called OPAL (Outer Planet ...

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

NASA Goddard Space Flight Center's Dr. Jennifer Wiseman explains the Hubble Space Telescope's view of the Pillars of Creation ...

These instruments, like the Hubble Space Telescope, reported a value of around 73 km/s/Mpc. The difference between these ...

Now, to the dismay of researchers, a new study designed to double-check the calculated rate of the universe's expansion – ...

The Hubble Space Telescope has captured imagery of spiral galaxy UGC 2890. The "galaxy lies around 30 million light-years ...

"The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that ...