Back to Article List The Real Reality Show: Is Pluto a Planet? With the recent New Horizons flyby, it's time to reassess the distant world's planetary status. By Astronomy Staff | Published: August 3, 2015 | Last updated on May 18, 2023 Key Takeaways: For the latest on the New Horizons mission and Pluto, check out Astronomy.com’s special Year of Pluto coverage.
Solar System Senators Kelly and Cornyn introduce resolution recognizing June 30 as National Asteroid Day
Observing, Planets, This Week in Astronomy This Week in Astronomy with Dave Eicher: Mercury in the evening sky
Solar System When the Sun becomes a red giant, will the outer planets and moons become more temperate?
Observing, Planets, This Week in Astronomy This Week in Astronomy with Dave Eicher: Mars passes the star Regulus