Iron-rich stars host shorter-period planets

Astronomers with the Sloan Digital Sky Survey (SDSS) have learned that the chemical composition of a star can exert unexpected influence on its planetary system—a discovery made possible by an ongoing SDSS survey of stars ...

Planets around other stars are like peas in a pod

An international research team led by Université de Montréal astrophysicist Lauren Weiss has discovered that exoplanets orbiting the same star tend to have similar sizes and a regular orbital spacing. This pattern, revealed ...

Hubble's celestial snow globe

It's beginning to look a lot like the holiday season in this NASA Hubble Space Telescope image of a blizzard of stars, which resembles a swirling snowstorm in a snow globe.

Should robots have rights?

As robots gain citizenship and potential personhood in parts of the world, it's appropriate to consider whether they should also have rights.

Research team identifies new organelle in parasitic wasp venom

City College of New York biologist Shubha Govind and her research team have identified the composition of "virus-like particles" (VLPs) found in the venom of a wasp that is a parasite of fruit flies. Invisible to the eye, ...

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