New Horizons Spacecraft Answers Question: How Dark Is Space?

Galaxies in the universe.

New measurements of that weak background glow show that the unseen galaxies are less plentiful than some theoretical studies suggested, numbering only in the hundreds of billions rather than the previously reported 2 trillion galaxies. (Image: Pexels via Pixabay)

A Beating Heart, Liquid Ocean, and Other Mysteries of Icy Pluto


Photos of Pluto sent back by NASA’s New Horizons probe have raised more questions than they’ve answered. (Image: Screenshot via YouTube)

New Horizons Team Publishes First Kuiper Belt Flyby Science Results

Most distant object ever explored presents mysteries of its formation. Image: NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute/Roman Tkachenko)