Most Planets Have No Known Date of First Observation . Before we begin, I want you to imagine a clear night sky you've ...

"Starburst galaxies birth lots of hot blue stars that burn fast and die quickly in explosions that unleash intense ...

Hubble’s latest image reveals the Small Magellanic Cloud (SMC), a nearby dwarf galaxy visible from Earth without a telescope.

A newly identified Kuiper Belt trio, possibly only the second of its kind, could provide strong evidence that these distant ...

The $488 million Spherex mission aims to explain how galaxies formed and evolved over billions of years, and how the universe ...

The Hubble Space Telescope captured an image of the spiral galaxy UGC 5460, located 60 million light-years away, which has experienced two recent supernovae: SN 2011ht and SN 2015as.

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

In 1994, the Hubble Space Telescope supposedly captured an image that corresponded, according to rumors at the time, to a celestial city that many claimed was heaven. Experts were quick to debunk ...

Edwin Hubble was young and ambitious. At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the new Hooker 100-inch telescope, at the time the largest ...

Mercury and Saturn will appear very close ... near negative 26 or 27. The Hubble Space Telescope is also visible, with a magnitude around positive 26 or 27. The moon is around negative 12.

A new kind of space telescope has embarked on a two-year mission ... To simplify the mission of SPHEREx compared with that of the Webb or Hubble telescopes, it's helpful to think of SPHEREx ...