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ESA

Hubble Captures a Peculiar Pair

This new NASA Hubble Space Telescope image of IC 4271, also known as Arp 40, is a curious pair of spiral galaxies some 800 million light-years away. The smaller galaxy is superimposed on the larger one, which is a type... Continue Reading →

Hubble Spies Newly Forming Star Incubating in IC 2631

Stars are born from clouds of gas and dust that collapse under their own gravitational attraction. As the cloud collapses, a dense, hot core forms and begins gathering dust and gas, creating an object called a “protostar.” This Hubble infrared... Continue Reading →

NGC 3314: When Galaxies Overlap

Why doesn't the nearby galaxy create a gravitational lensing effect on the background galaxy? It does, but since both galaxies are so nearby, the angular shift is much smaller than the angular sizes of the galaxies themselves. The featured Hubble image of NGC 3314 shows two large spiral galaxies... Continue Reading →

The Outburst Clouds of Star AG Car

What created these unusual clouds? At the center of this 2021 Hubble image sits AG Carinae, a supergiant star located about 20,000 light-years away in the southern constellation Carina. The star's emitted power is over a million times that of the Sun, making AG Carinae one... Continue Reading →

In, Through, and Beyond Saturn’s Rings

Four moons are visible on the featured image -- can you find them all? First -- and farthest in the background -- is Titan, the largest moon of Saturn and one of the larger moons in the Solar System. The dark feature across the top of... Continue Reading →

Getting CubeSats moving

ESA’s M-Argo mission will be the first CubeSat to traverse interplanetary space under its own power. Due to launch in 2024-5, the suitcase-sized spacecraft will travel to a near-Earth asteroid, up to 150 million km away. CubeSats are small, cheap satellites assembled... Continue Reading →

Veil Nebula: Wisps of an Exploded Star

Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to... Continue Reading →

ESA and UNOOSA illustrate space debris problem

Space debris is an issue of global concern that threatens our continued use of near-Earth space for the benefit of humankind. To raise awareness about this growing problem, ESA and the United Nations Office for Outer Space Affairs (UNOOSA) have created a series... Continue Reading →

Happy New Year on Mars

Five, four, three, two, one…. FIREWORKS! The countdown to a new year is in many ways a defining moment for our lives on Earth. Our age, our seasons, filing our taxes… – all depend on the duration of Earth’s orbit... Continue Reading →

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