Planetary alignments occur because the planets in the Solar System orbit the Sun within roughly the same plane – known as the ecliptic plane. As they orbit at different speeds and distances from ...

Once they are all in place, seven of the eight planets in our solar system will grace our sky. For much of the week, six of the planets may be visible, according to NASA. On Friday, however ...

However, none of the eight planets, including Earth ... Although most simulations created conditions very unlike the current solar system, the researchers found that in approximately 1% of ...

The number of planetary moons may also increase if we find more planets in the solar system. One such world is the elusive Planet Nine — a hypothetical giant planet that may lurk in the far ...

For example, the three innermost planets — Mercury, Venus and Earth — align within 3.6 degrees in the sky every 39.6 years. For all of the solar system's eight planets to align as closely ...

Seven planets aligned in the night sky on Friday, Feb. 28, viewable from Earth. A similar planetary alignment with six planets will occur on Aug. 29. The planets appear to align from Earth's ...

A distant exoplanet discovered, named Enaiposha, is unlike anything found in our own solar system, similar to a "super-Venus" ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...