The alignment of seven planets in the night sky has captivated observers for centuries, inspiring awe and curiosity. This ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...

Gravity provides the force needed to maintain the stable orbit of planets around a star and also of moons and artificial satellites around a planet. The moons around planets in the Solar System ...

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the ...

So, when comets outgas, they have what planetary scientists call nongravitational acceleration—motion that isn't caused by the gravity of objects in the solar system. Planetary scientists ...

NASA’s Goldstone Solar System Radar is closely tracking asteroid 2024 PT5 during its nearest approach to Earth, a distance ...

The Sun is the largest object in the Solar System. The Sun’s huge gravitational field keeps many other objects – planets, dwarf planets, asteroids and comets – in orbit around it.