Related topics: nasa · stars · planets · solar system

A 'deal for nature' to rescue wildlife: WWF chief

The global population of fish, birds, amphibians, reptiles and mammals has declined 60 percent since 1970, according to the WWF's "Living Planet" report released Tuesday.

'Oumuamua one year later

One year ago this week astronomers discovered an unusual object moving through space not too far from the Earth's orbit. In just a few days they realized it could not be a normal asteroid or comet – its path showed that ...

Construction of Europe's exoplanet hunter PLATO begins

The construction of ESA's PLATO mission to find and study planets beyond our solar system will be led by Germany's OHB System AG as prime contractor, marking the start of the full industrial phase of the project.

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 ...

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