The cosmos is filled with stars. However, the closest star beyond the Sun is so far away, that it would take the fastest spacecraft 75,000 years to reach it. Astronomers can't study the cosmos by sending probes to gather information about other stars, as we do with our own Sun and its planets. Fortunately they don't have to. The information comes to us at the speed of light! Read more at Space Daily.
Learn more about Canada's contribution to the James Webb Space Telescope here.