Results tagged “STScI”

Hubble Views Leda and NGC 4424

Some astronomical objects have endearing or quirky nicknames, inspired by mythology or their own appearance.

Hubble Views Jupiter and Its Moon Shadows

Firing off a string of action snapshots like a sports photographer at a NASCAR race, NASA's Hubble Space Telescope captured the rare occurrence of three of Jupiter's largest moons racing across the banded face of the gas-giant planet: Europa, Callisto, and Io.

Hubble Views Distant Merging Galaxies

Using the NASA/ESA Hubble Space Telescope and many other telescopes on the ground and in space, an international team of astronomers has obtained the best view yet of a collision that took place between two galaxies when the universe was only half its current age.

NASA's Hubble Space Telescope has weighed the largest known galaxy cluster in the distant universe, catalogued as ACT-CL J0102-4915, and found it definitely lives up to its nickname -- El Gordo (Spanish for "the fat one").

Tonight's Sky: The Night Sky in July

Backyard stargazers get a monthly guide to the northern hemisphere's skywatching events with "Tonight's Sky." July hosts the Delta Aquarid meteor shower and and three glorious nebulae.

A flash of light from a stellar outburst has been used to probe for the first time the 3-D structure of material ejected by an erupting nova.

Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that constitutes the large-scale structure of the universe, and is a leftover of the very first moments after the Big Bang

Star Clusters on a Collision Course

Astronomers using data from NASA's Hubble Space Telescope caught two clusters full of massive stars that may be in the early stages of merging.

A team of astronomers using NASA's Hubble Space Telescope is reporting the discovery of another moon orbiting the icy dwarf planet Pluto.

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