NASA's Hubble Space Telescope peered into the center of a vast galaxy cluster in a beautiful new image. The European Space Agency (ESA) said the cosmic giant – called eMACS J1823.1+7822 – can ...

But the background visible light — dubbed the cosmic optical background, or COB — is challenging to measure from the inner solar system. Here, lots of interplanetary dust scatters sunlight ...

It's the largest telescope ever to go to space, and its mirrors are a shiny gold. ... (21.5 feet) in diameter, with seven times the light-gathering power of the Hubble Space Telescope.

The first publicly released image from the James Webb Space Telescope, showing countless galaxies and multiple arcs where the combined gravity of those galaxies magnifies light from background ...

The first observation of a collision between neutron stars, detected in August 2017, created gravitational waves, light and heavy elements like gold and platinum. But astronomers have realized ...

Astronomers searched through 200,000 images and made tens of thousands of measurements from Hubble Space Telescope to discover a residual background glow in the sky. ARTWORK: NASA, ESA, Andi James ...

Erik M. Leitch of the University of Chicago explains. The Cosmic Microwave Background radiation, or CMB for short, is a faint glow of light that fills the universe, falling on Earth from every ...

Some people see a white and gold dress in dark shadow. Some people see a blue and black dress washed out in bright light. Some people see one interpretation and then switch to the other.