Astrophysical Journal Letters

Neutron stars on the brink of collapse

When a massive star dies, its core contracts. In a supernova explosion, the star's outer layers are expelled, leaving behind an ultra-compact neutron star. For the first time, the LIGO and Virgo Observatories have recently ...

dateDec 05, 2017 in Astronomy
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Exoplanet has smothering stratosphere without water

A NASA-led team has found evidence that the oversized exoplanet WASP-18b is wrapped in a smothering stratosphere loaded with carbon monoxide and devoid of water. The findings come from a new analysis of observations made ...

dateNov 30, 2017 in Astronomy
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