272 Pins
an artist's impression of a black hole in the sky with a bright disk
Noelito Flow
Pulsar - A pulsar (pulsating star) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. Neutron stars are very dense, and have short, regular rotational periods. This produces a very precise interval, between pulses that range from roughly milliseconds to seconds for an individual pulsar. Certain types of pulsars rival atomic clocks in their accuracy in keeping time.
the space shuttle is flying in the sky above the earth's clouds and water
the space shuttle is flying through the sky
250 Cosmos ideas | cosmos, space and astronomy, astronomy
an aerial view of the inside of a building with water running through it and yellow arrows pointing in opposite directions
1-60 sec at f - 5.6_140 mm_ISO 1000.jpg
an airplane is flying over the space shuttle on top of nasa's launch pad
an airplane is flying in the air over some grass and red fire hydrants with people sitting on benches
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the space shuttle is flying over the earth's ocean and landforms in this image
Earth observation
an overhead view of a large display in a building with lots of metal structures on it
Shuttle Mission Report | PHOTOS: Endeavour's heat shield, landing gear
the space shuttle is on display in the museum
19 Photos That Will Make You Feel Very Tiny On This Earth
an info sheet showing the different types of stars and planets in space, with information about them
"The two largest pieces of the Universe that we know the least about, yet nothing less than the ultimate fate of the Universe will be determined by them."
an info sheet with different types of stars and numbers on it, including the planets
Infographic: The Nearest Stars to Earth
Infographic: The Nearest Stars to Earth