The two brightest planets in the sky, Venus and Jupiter, will appear side by side in the early-morning sky Monday. At only a quarter of a degree apart, it's the closest two planets will appear in our sky this year, according to EarthSky.org. Look low in the eastern sky about 5 a.m., an hour before dawn, and see them into the morning twilight. Though they look close, they are hundreds of millions of miles apart.