Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Especially since all seven of the other planets in our solar system are about to become visible at once in a great planetary alignment. According to New Scientist: “The great alignment, including ...

In the above animation, the Sun, Jupiter and Saturn are shown orbiting the barycentre of our solar system. The barycentre is ...

and seven of our solar system's planets will be visible all at once just after sunset. On February 28, Mars will be situated in the constellation Gemini above the southern horizon, Jupiter will be ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

Ask a group of people to name the most amazing thing they have seen in the daytime or nighttime sky and you may get answers like: the total solar eclipse of August 2017, Venus’ solar transit ...

NASA’s Parker Solar Probe Preps for Record-Breaking Christmas Eve Flyby The Parker Solar Probe will swoop just 6.1 million kilometers above the sun’s surface on Christmas Eve. Scientists are ...

Two new studies show a briny, carbon-rich environment on the parent body of the Bennu asteroid was suitable for assembling ...