Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Bring the Moon and planets into closer view, spot stunning star clusters and observe distant galaxies and nebulas with your own eyes — you can even photograph your subject with a smart telescope.

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the Solar System.

a lush planet of other types may be just as good. No Man's Sky has multiple galaxies that you can travel to from the Galactic Core. The first time you do that is at the end of the main story ...

Exoplanets have captured the imagination of public and scientists alike and, as the search continues for more, researchers ...

The different speeds of the planets mean that ... namely the alignments of galaxies. Observing galaxies in the very early universe is difficult because they are so faint and far away.