Astronomers observe for the first time the actual motion of spirals in a protoplanetary disk, revealing gravitational ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

The Atacama Large Millimeter/submillimeter Array (ALMA) has captured the motion of spirals of dust around a young star and shown that the winding motion of the spiral pattern is conducive to planet ...

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 ...

Credit: NASA/Sophia Roberts In the radial-velocity detection technique, with which 51 Pegasi b, the first planet known to orbit a sun-like star, was found, astronomers measure the Doppler shift of a ...

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 ...

Nothing in the universe is truly standing still. Everything is in motion, from planets and stars to galaxies themselves. Hello, curious kids! Do you have a question you’d like an expert to answer? Ask ...

From an early age, we are taught to understand that the planets of our solar system change in position while orbiting a central star, the sun. But does the sun itself move within the solar system?