A trio of missions are on track to intercept and study the famous near-Earth asteroid Apophis during its close encounter with our planet in April 2029.
The age of exoplanets began in 1992, when astronomers detected a pair of planets orbiting a pulsar. Then, in 1995, astronomers discovered the first exoplanet orbiting a main sequence star. As NASA's Kepler and TESS missions got going, the number of confirmed exoplanets continued to rise.

