The "Nube" galaxy, which is 10 billion years old ... deep-sky objects above 22 mag/arcsec are considered faint, with a completely dark sky having a surface brightness of 21.8 mag/arcsec.

The "dark universe detective" space telescope Euclid has discovered its first Einstein ring in the process, learning about ...

This makes galaxy clusters glow brightly at those wavelengths as one of the brightest sources of X-rays on the sky. In 2019 German and Russian research groups collaborated to launch a new X-ray ...

STARGAZERS are in for a treat this month as a rare planet parade falls in Andromeda galaxy season. “One of the best planet ...

Situated approximately 330 million light-years from Earth, this galaxy comprises 99.9% dark matter and barely 0.1% normal stuff. Due to the astounding size of its invisible component, Dragonfly 44 has ...

The Milky Way should be visible the other side of Jupiter in the southern sky. However, it’s really important that you get to as dark as place as possible. The Milky Way galaxy rising in the sky ...

The Andromeda Galaxy. For our ancestors, the celestial objects were map and calendar ... There is also a growing movement against light pollution. Championed by dark sky advocates and bolstered by ...

The arc of our galaxy—visible right now straight after dark from places with no light pollution, such as Dark Sky Places—features prominently in the winning images from as far afield an Taiwan ...