What compelling evidence links pulsars to neutron stars?
A) Both pulsars and neutron stars can be found in globular star clusters.
B) Pulsars are known to evolve into neutron stars.
C) Only a small, very dense source could rotate that rapidly without flying apart.
D) Pulsars are always found in binary systems with neutron stars.
E) Both pulsars and neutron stars have been discovered near the Sun.
Question 2
Which of the following is not an expected consequence of global warming?
A) an increase in the severity of winter blizzards
B) an increase in the number and intensity of hurricanes
C) melting of polar ice and glaciers
D) the entire Earth warming up by the same amount
The two bright stars are (left) Alpha Centauri and (right) Beta Centauri.
Motion of Stars at the Poles
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Anatomically modern humans left archaeological clues, including evidence of burials, which indicate
Foundations of evidence-based practice.
Pulse–chase labeling evidence of bidirectional DNA replication in mammalian chromosomes