Search results
Results From The WOW.Com Content Network
The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova.It is located about 6,500 light-years from the Earth. [1]A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (less than roughly 10 to 300 parsecs [33 to 978 light-years] away [2]) to have noticeable effects on Earth's biosphere.
A near-Earth supernova is a supernova close enough to the Earth to have noticeable effects on its biosphere. Depending upon the type and energy of the supernova, it could be as far as 3,000 light-years away. In 1996 it was theorised that traces of past supernovae might be detectable on Earth in the form of metal isotope signatures in rock strata.
The supernova was about 21 million light-years from Earth and is expected to have left behind either a neutron star or black hole, based on current stellar evolution models. The supernova is located near a prominent HII region, NGC 5461, in an outer spiral arm of the bright galaxy. [3] By 22 May 2023, SN 2023ixf had brightened to about ...
Astronomers have taken the first close-up image of a star beyond our galaxy, and it’s a “monster star” surrounded by a cocoon as it slowly dies.
Most recent Local Group supernova SN 1993J: Ursa Major +10.7 [18] 11,000,000 IIb M81: One of the brightest supernovae in the northern sky since 1954 SN 1994D: Virgo +15.2 50,000,000 Ia NGC 4526: SN 1998bw: Telescopium? 140,000,000 Ic ESO 184-G82: Linked to GRB 980425, which was the first time a gamma-ray burst has been linked to a supernova. SN ...
The cause of the Devonian period extinction 359 million years ago, ranked as one of the five great extinctions of life on Earth, remains a mystery. Now, a new study reveals the explosion of a ...
2 Exceeding 7 minutes of totality, this will be the first time this has happened in 177 years; the last one occurred on June 30, 1973, [139] when the Concorde prototype followed the totality spot for 73 minutes. 3 Largest total solar eclipse in the 3rd millennium, with a magnitude of 1.08074 [140] 4 Very close to the theoretical maximum.
Get ready for the time change, people. Here is what to know about Daylight Savings Time.