This image of Mars taken by NASA shows a Martian crater in the shape of a heart. The University of Wyoming Harry C. Vaughan Planetarium will present “Hearts in the Sky,” a Valentine’s Day program at ...

Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be observed. Credit: NASA, ESA, STScI, A. Simon (NASA-GSFC), M. H. Wong (UC ...

Most life on Earth depends on oxygen—but not these creatures! From deep-sea organisms to microscopic marvels, these 9 animals ...

What is Planet Position in Astrology? Planet position is a diagrammatic representation of the condition and positions of the celestial bodies at any given time for any given location on Earth. Planet ...