NASA | Fermi Finds a Youthful Pulsar Among Ancient Stars
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- čas přidán 2. 11. 2011
- In three years, NASA's Fermi has detected more than 100 gamma-ray pulsars, but something new has appeared. Among a type of pulsar with ages typically numbering a billion years or more, Fermi has found one that appears to have been born only millions of years ago.
A pulsar is a type of neutron star that emits electromagnetic energy at periodic intervals. A neutron star is the closest thing to a black hole that astronomers can observe directly, crushing half a million times more mass than Earth into a sphere no larger than a city. This matter is so compressed that even a teaspoonful weighs as much as Mount Everest.
Millisecond pulsars are thought to achieve such speeds because they are gravitationally bound in binary systems with normal stars. During part of their stellar lives, gas flows from the normal star to the pulsar. Over time, the impact of this falling gas gradually spins up the pulsar's rotation.
Be sure to go here (www.nasa.gov/externalflash/fer...) to see a new interactive map of all known pulsars.
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Hope that FERMI will be able to find more of these kind of pulsars so that the will more fact being discovered.
Pulsar star: Pulses as in knocks or heart beats
Music sounds like a heavily remixed version of Bjorn Lynne's "Ruins of an Alien Civilization" from his "Colony" album. Awesome.
@UncleKennybobs Taking rough upper bounds, 700 rotations per second, 15km diameter, the fastest parts of a large and high frequency pulsar would be moving at about 1/30th the speed of light. Large pulsars might tend to have lower frequencies though, so the fastest neutrons in pulsars might be slower than that.
Gamma rays? Oh man nothing could live near that thing!
@quakepapi It didn't travel to the star. The satellite is within our solar system observing light that traveled to us, from the pulsar.
@cmtiger yes, problem?
Pulsar is awesome star 💕🇺🇸😉👑
All this understanding from what?
Flashing light in the sky?
But i like it dahil filipino po ako favorite ko pero to😘🇵🇭
This stars already mentioned in quran (knocking stars-tariq)
@quakepapi kidding me?
@cmtiger nah some one just got an engraved slab of stone emailed to him/her from god .
Alhumdulliah
Muslim already know about this pulser star in quran 1400 years ago
請教NASA.中國古代的笑媧or嬰靈.是地球生物老鷹引領在secrat曾出現中國的雲-龍山區.是否像前KGB和USA.世界的科學院研究機構組織研究的原理的mass的S.F.胡先生以中國玄學研究稱具特殊的Force.
Do these Pulsars turn into BlackHoles?
If they accumulate enough new mass, yes the space-time displacement of mass/volume density has a hill gravity so strong it attracts matter inward faster than the speed of light and it is capable of stripping the bonds of matter to its simplest atomic particles.
Interesting notion: in terms of sheer time scale the Universe doesn't have an 'origin' so there's no middle of the cosmos, no central Universe where everything began. No beginning, and no end. Because there is no comparative standard of measure against an 'expanding' Universe, no symbolic indice scale's expanded universes, or BH's either: singularities are more like a shrinking cosmic horizon, the inverse of an expanding Universe disappearing over the observable horizon faster than its light can cross the distance back.
A single incandescent light bulb is available to light a huge darkness, a room so large its walls cannot be seen or reached or touched by the light - nobody has ever crossed the room it is simply too big even for generations to attempt. If anything, the room is getting even bigger all the time.
My phone its starting lag😭😭
Viewer number 5,555! Anyone else?