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Selection of astronomical bodies and objects: Moon Mimas and Ida, an asteroid with its own moon, Dactyl; Comet Lovejoy and Jupiter, a giant gas planet; The Sun; Sirius A with Sirius B, a white dwarf; the Crab Nebula, a remnant supernova; A black hole (artist concept); Vela Pulsar, a rotating neutron star
A meteor streaks through the night sky early Monday during the annual Perseid meteor shower behind St Mark's Tower, a 17th century coastal fortification near the village of Bahar ic-Caghaq, Malta.
The Super Meteor 650 shares a resemblance to its younger counterpart, the Meteor 350, but with a more muscular appearance. It features a wide and low-slung seat, offering a relaxed riding position ideal for long-distance journeys. The cruiser aesthetics are enhanced by its teardrop-shaped fuel tank, scooped seat, and robust fenders. [6]
A star blows itself apart in a nearby galaxy, and astronomers scramble to study the rare appearance of a supernova. NOVA kicks off its 15th season with a fast-breaking science story as it is happening. Including scenes taken from Las Campanas Observatory in Chile and many others in the U.S., Australia and South Africa. Narrated by Bill Mason.
It occurred approximately 51.4 kiloparsecs (168,000 light-years) [a] from Earth and was the closest observed supernova since Kepler's Supernova in 1604. Light and neutrinos from the explosion reached Earth on February 23, 1987, and it was designated "SN 1987A" as the first supernova discovered that year.
[132] 2009 studies suggest an impact frequency of one every 50–350 years, for an object of 0.5–1 km in diameter; impacts with smaller objects would occur more frequently. Another study estimated that comets 0.3 km (0.19 mi) in diameter impact the planet once in approximately 500 years and those 1.6 km (0.99 mi) in diameter do so just once ...
In astronomy, the terms object and body are often used interchangeably. However, an astronomical body or celestial body is a single, tightly bound, contiguous entity, while an astronomical or celestial object is a complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures.
The rock was named after Hypatia of Alexandria (c. 350–370 AD – 415 AD) – the philosopher, astronomer, mathematician, and inventor. [7] Assuming the Hypatia stone is a meteorite, such naming is in violation of the long-standing convention and regulation of naming meteorites, which states that " a new meteorite shall be named after a ...