One of our planets may be missing, and it could explain why the solar system looks the way it does

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...
New Scientist

How to see six planets in the sky at once in rare celestial alignment

Nearly all of the planets in the solar system are about to march through the night sky in a single-file line. This planetary alignment, sometimes called a planet parade, will include all of the solar ...