The chance to see four planets in the sky at the same time, and so close together, isn't terribly common. Gyuk says that ...

The night sky offers us a variety of spectacles throughout the year, but for the remainder of the month, we have front-row seats to see—not one or two—but seven planets at once. Mercury, Venus, Mars, ...

Time-lapse footage of a newly discovered exoplanet as it makes its slow journey around two stars. To obtain the image of the planet, astronomers needed to remove the stars' glare. Two star icons mark ...