The search for water on the Red Planet intensifies this year as NASA sends an orbiter to study the climate and a lander to explore the south polar region.
Edwin Hubble is more than a name on the space telescope-he proved that galaxies exist and the universe is expanding.
Everyone knows Copernicus, Kepler, and Tycho, but they are just three of the thousands of dead scientists to be immortalized on the lunar surface.
As the NEAR spacecraft arrives at the asteroid Eros, it begins a year-long reconnaissance that may end with a historic landing.
Astronomy, 1999, February