There’s a strange sickle-shaped object in the Carina Nebula. The authors of this paper used observations at several different wavelengths to investigate the nature of this intriguing nebula, leading to some interesting discoveries and even more questions.
In today’s astrobite, we discuss the puzzling results from the AMS-02 experiment, which has detected an excess of positrons in cosmic rays with respect to what we expect from known physical sources. Where are those positrons coming from?
The existence of a conducting layer near the core/mantle boundary has profound implications for the operation of a dynamo in rocky exoplanets and for our ability to detect exoplanetary magnetic fields.
An array of dipole antennas in South Africa’s Karoo desert offers the best limit on the power spectrum of the Epoch of Reionization.
What causes the giant radio and gamma-ray bubbles inflated from our galactic center? This paper provides another good argument for star formation as the culprit.
In this paper, the authors use near-IR imaging and spectroscopy to determine if G2, a galactic center source about to approach our galaxy’s supermassive black hole, is a gas cloud or a star.