New research, however, has lifted the lid on where in space these signals could be coming from. One of the pulsating signals was tracked back to its source — a red dwarf, a common star in the ...

After one such explosion blows a star's outer layers into space, the core remains—but it no longer produces nuclear fusion. With no outward pressure from fusion to counterbalance gravity's ...

Better analysis techniques have given researchers the ability to detect radio pulses that last from seconds to minutes and ...

burning the last of its hydrogen and causing the star's outer layers to expand outward. At this stage, the star becomes a large red giant. Because a red giant is so large, its heat spreads out and ...

After the main sequence period, they expand and become red super giants. This is followed by an explosion in which the outer ... star or a black hole. A black hole is anything but empty space.