Astronomers have discovered an icy ball in the dark and frigid regions of the outer solar system, which they suspect harbors secrets to the solar system's formation and evolution.
planetary evolution
Exoplanet Found in Curious Triple-Star System
The newly discovered planet balances precariously in orbit within the star system, puzzling scientists.
Did Solar Flares Cook Up Life on Earth?
Scientists have found that "super" solar flares could have warmed the ancient planet and jump-started life.
Largest Haul of Newly Verified Exoplanets Announced
About 550 of the planets could be rocky like the Earth, and nine of the planets orbit within their star's habitable zone.
Becoming Habitable in the Habitable Zone
Scientists explore how interactions between a rocky planet's climate, mantle, and core can affect its evolution and determine whether it could sustain life.
Space Telescope Findings Suggest Molten Planetary Surface
Researchers studying the super-Earth 55 Cancri e spotted some puzzling features that provide a new vision of the orb's surface.
Understanding the Formation and Primordial Evolution of the Earth
The processes that formed the infant Earth set the stage for its subsequent evolution into the dynamic and habitable planet we know today.
Satellites Reveal the History of the Moon's "Frigid Sea"
The history of aluminum-rich basalts in Mare Frigoris may help scientists better understand the evolution of the lunar mantle.
World Without Time
On New Year's Day 2019, a spacecraft known for its historic flyby of Pluto will take an unprecedented look into the distant past by flying right up to a frozen remnant of the original solar system.
Exoplanets: First Baby Pictures Unveiled
New observations of stars hundreds of light-years from Earth reveal evidence of planets still surrounded by disks of the primordial materials they grow from.