Looking up into the night sky, it can be difficult to comprehend the vastness of the space that surrounds the Earth – and the impressive size of the various stellar and planetary bodies on display.

A screenshot of James’s animation “Planets and dwarf planets to scale in size, rotation speed & axial tilt in distance order from Sun”. Credit must be given to the creator. Only noncommercial uses of ...

Pouring rain didn't dampen the spirits Saturday of about 100 people who gathered to witness the unveiling of a scale-model solar system at the McCarthy Observatory in New Milford. The centerpiece is ...

The smaller a planet, the more difficult it is to spot — which is frustrating for scientists hoping to find Earth-like worlds. That's why a team of researchers set out to determine what planetary ...

Researchers have discovered an Earth-sized planet that lies in the habitable zone of a star located around 300 light-years from Earth. The international team of scientists estimate that the planet, ...

Bigger than a planet? Smaller than an atom? Size comparison videos are all the rage and may scratch a very old itch. By Jenny Marder Not long ago, my 7-year-old son looked up from a picture he was ...