First light for SPIRou, exoplanet hunter

SPIRou, the new planet-hunting spectropolarimeter developed for the Canada-France-Hawaii Telescope (CFHT), has successfully recorded its first starlight. Ten years after it was first designed and following four intensive ...

15 new planets confirmed around cool dwarf stars

A research team led by Teruyuki Hirano of Tokyo Institute of Technology's Department of Earth and Planetary Sciences has validated 15 exoplanets orbiting red dwarf systems. One of the brightest red dwarfs, K2-155 that is ...

The three surprises of 'Oumuamua

One of the defining moments in planetary astronomy in 2017 is that this is the year we discovered the first astronomical object to enter the Solar System from interstellar space. Now known as `Oumuamua (Hawaiian for "scout"), ...

Hubble finds substellar objects in the Orion Nebula

Using NASA's Hubble Space Telescope to peer deep into the vast stellar nursery called the Orion Nebula, astronomers searched for small, faint bodies. What they found was the largest population yet of brown dwarfs—objects ...

Orbital mayhem around a red dwarf

In the collective imagination, planets of a solar system all circle in the equatorial plane of their star. The star also spins, and its spin axis is aligned with the spin axes of the planetary orbits, giving the impression ...

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