Mrs. Barwick's Activity (2)
hbarwick added a news bookmark.
The fact that the moon's gravitational pull affects ocean tides is well-known. However, what scientists did not know is that the Earth's gravity has a similar tug on the satelli...Almost 9 years agohbarwick added a news bookmark.
When Pluto was demoted to dwarf status in 2006 we were left with a mere eight planets in our solar system. Now Planetary Astronomy Professor Mike Brown, the researcher responsib...Almost 9 years ago