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Northwest Africa 7034 is a Martian meteorite. [4] It contains portions [5] estimated to be 4.43 billion years old and contains the most water of any Martian meteorite found on Earth. [6]
Pieces of Mars rock can command similar prices, with a 4.25-pound piece selling for $63,000, approximately $15,000 per pound. Meteorites from the Moon are even more valuable. A 406-gram lunar ...
A black hole (artist concept); Vela Pulsar, a rotating neutron star M80 , a globular cluster , and the Pleiades , an open star cluster The Whirlpool Galaxy and Abell 2744 , a galaxy cluster
Astronomers speculate that NGC 300 X-1 is a new kind of Wolf-Rayet + stellar black hole binary system similar to the confirmed such system IC 10 X-1. [27] Their shared properties include an orbital period of 32.8 hours. The black hole has a mass of 17 ± 4 M ☉ and the WR star has a mass of 26 +7 −5 M ☉.
Black widow pulsar, in a tight 2.3 hour binary. [7] PSR J0952–0607: 2.35 ± 0.17: 3,200–5,700 Substellar object: Radio-measured Shapiro delay: Black widow pulsar. Fastest spinning galactic pulsar. [8] PSR J1311–3430: 2.15–2.7: 6,500–12,700: Substellar object: Spectroscopic and photometric observation. Black widow pulsar. [9] [10] PSR ...
One speculation regarding its shape is that it is a result of a violent event (such as a collision or stellar explosion) that caused its ejection from its system of origin. [46] JPL News reported that ʻOumuamua "is up to one-quarter mile (400 meters) long and highly-elongated — perhaps 10 times as long as it is wide". [47] [105]
Gaia BH1 (Gaia DR3 4373465352415301632) is a binary system consisting of a G-type main-sequence star and a likely stellar-mass black hole, located about 1,560 light-years (478 pc) away from the Solar System in the constellation of Ophiuchus. [4]
M33 X-7 is a black hole binary system in the Triangulum Galaxy.The system is made up of a stellar-mass black hole and a companion star. The black hole in M33 X-7 has an estimated mass of 15.65 times that of the Sun (M ☉) [3] [4] (formerly the largest known stellar black hole, though this has now been superseded amongst electromagnetically-observed black holes by an increased mass estimate ...