Using NASA’s Hubble Space Telescope, astronomers were able to use the same sort of trigonometry that surveyors use to precisely measure the distance to NGC 6397, one of the closest globular clusters to Earth. The only difference is that the angles measured in Hubble’s camera are infinitesimal by earthly surveyors’ standards.
Using the Hubble Space Telescope and a quirk of nature called gravitational lensing, an international team of astronomers has found the most distant individual star ever discovered, dubbed “Icarus.” This discovery provides new insight into the formation and evolution of stars in the early universe, the makeup of galaxy clusters, and the nature of dark matter.
Observations by NASA’s Hubble Space Telescope of galaxy NGC 1052-DF2 have turned up an oddity that sets it apart from most other galaxies, even the diffuse-looking ones. It contains little, if any, dark matter, an invisible substance that makes up the bulk of our universe.
Using Kepler’s unique capabilities, astronomers have captured the blast properties of an unusual exploding phenomenon known as a Fast-Evolving Luminous Transient (FELT). This allowed them to exclude a range of theories about how FELTs happen, and converge on a plausible model.
Scientists have used the Hubble Space Telescope to chemically analyze the gas in the Leading Arm (the arching collection of gas that connects the Magellanic Clouds to the Milky Way) and determine its origin.
Astronomers using the Hubble Space Telescope have identified a very rare and odd assemblage of stars that has remained essentially unchanged for the past 10 billion years. The diffuse stellar island, galaxy NGC 1277, provides valuable new insights into the origin and evolution of galaxies billions of years ago.
Astronomers have used Hubble to uncover a vast, complex dust structure, about 150 billion miles across, enveloping the young star HR 4796A. A bright, narrow, inner ring of dust is already known to encircle the star and may have been corralled by the gravitational pull of an unseen giant planet. This newly discovered huge structure around the system may have implications for what this yet-unseen planetary system looks like around the 8-million-year-old star, which is in its formative years of pla…
It’s beginning to look a lot like the holiday season in this Hubble Space Telescope image of a blizzard of stars, which resembles a swirling snowstorm in a snow globe. The stars are residents of the globular star cluster Messier 79 (also known as M79 or NGC 1904), located 41,000 light-years from Earth, in the constellation Lepus.
A movie assembled from more two years’ worth of Hubble images reveals an expanding shell of light from a supernova explosion sweeping through interstellar space three years after the stellar blast was discovered. The “echoing” light looks like a ripple expanding on a pond. The supernova, called SN 2014J, was discovered on Jan. 21, 2014.
NASA’s Hubble Space Telescope helped an international team of astronomers find that an unusual object in the asteroid belt is, in fact, two asteroids orbiting each other that have comet-like features. These include a bright halo of material, called a coma, and a long tail of dust.