Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid ...

It has a smooth-looking, armless shape, like an elliptical galaxy, and a disk with a low star-formation rate. However, it has relatively younger and newer stars forming in its central region.

Its thousands of galaxies are like a swarm of bees, buzzing around a giant core of enormous elliptical galaxies ... And just before dawn, Venus pops above the horizon at around 5am, outshining ...

Already more than 4.5 billion years old, the sun is on course to run out of energy and die in another 5 billion years or so, but not before becoming so big it will engulf Mercury, Venus and ...

The unusual galaxy NGC 4694 has traits unique to the two main galaxy types, spiral and elliptical. (Image credit: ESA/Hubble & NASA, D. Thilker) What it is: The galaxy NGC 4694, a member of the ...