The discovery of planets outside our solar system has reshaped humanity’s understanding of the universe. Since the confirmation of the first exoplanet around a main-sequence star in 1995, astronomers ...

More planets are changing directions. First, Mercury circled retrograde. This week, Mars is reversing course and Neptune starts spinning forward again. Going retrograde and stationing direct are the ...

Shedding light on the gravity of the situation. Most people do not realize that many of the stars and heavenly bodies they see in the sky no longer exist. In fact, many have ceased to exist for ...

With the number of exoplanets having recently passed the 6,000 mark, astronomers are busy preparing for many thousands more in the coming years, with underutilized planet-finding techniques about to ...

Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost 90 degrees to the pair’s motion. The system lies about 120 light-years from ...

Stargazers can now look up and see a planetary alignment in the night sky, or what some are calling a "planetary parade," throughout January. It's a dazzling cosmic event involving Venus, Mars, ...

An orrery is a moving model of a planetary system. Daniel Fabrycky, University of California at Santa Cruz, created two animated orrerys to display the 1,235 Kepler planet candidates. 1,235 Planet ...

In a star system 2,600 light years away, a Jupiter-like exoplanet called Kepler-1658b is spiraling toward a fiery collision with its star, and it could shed light on the terrible fate that awaits our ...

In this work, we extensively investigate the formation of near 4:2:1 mean motion resonances (MMRs) configuration by performing two sets of N-body simulations. We model the eccentricity damping, gas ...

A planet's north pole is defined by its position relative to the solar system's invariable plane. The invariable plane is a fixed reference point perpendicular to the solar system's rotation. A planet ...