Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may not be the full picture.
Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.
Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.
To better understand why the planets have variable compositions ... to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary growth in the solar ...
This month, six planets in the solar system — Mars, Jupiter ... will be hosting a free live stream of the event beginning at 12:30 pm ET on Saturday. As Mercury closes in on its greatest ...
This alignment allowed the spacecraft to visit all four planets within a span of just 12 years, instead of the ... alien civilization observing our Solar System and using similar alignments ...