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For the past few months, Saturn's rings have been appearing thinner and thinner to those using ground telescopes. By March 2025, the rings will disappear entirely from view, according to Earth Sky ...
There are at least 19 natural satellites in the Solar System that are known to be massive enough to be close to hydrostatic equilibrium: seven of Saturn, five of Uranus, four of Jupiter, and one each of Earth, Neptune, and Pluto. Alan Stern calls these satellite planets, although the term major moon is more common.
J1407b is a substellar object, either a free-floating planet or brown dwarf, with a large circumplanetary disk or ring system.It was first detected by automated telescopes in 2007 when its disk eclipsed the star V1400 Centauri, causing a series of dimming events for 56 days.
Astronomers using the Hubble Space Telescope and the Very Large Telescope have made precise tests of general relativity on galactic scales. The nearby galaxy ESO 325-G004 acts as a strong gravitational lens, distorting light from a distant galaxy behind it to create an Einstein ring around its centre. By comparing the mass of ESO 325-G004 (from ...
Jupiter and Saturn have been prominent features in the night sky all year long, but shortly after the first sunset of winter, the pair will join forces to shine incredibly bright for just a few ...
In an image captured by the Hubble Space Telescope, Saturn’s rings display an unexplained phenomenon that looks like spokes moving across its rings.
The ability of gravitational waves to move freely through matter also means that gravitational-wave detectors, unlike telescopes, are not pointed to observe a single field of view but observe the entire sky. Detectors are more sensitive in some directions than others, which is one reason why it is beneficial to have a network of detectors. [47]
NASA's Cassini spacecraft, which explored Saturn and its icy moons, including the majestic Titan, ended its mission with a death plunge into the giant ringed planet in 2017. Cassini's radar ...