Bob Stephens, of Rancho Cucamonga, is among the many amateur astronomers who are eagerly awaiting the appearance of the Blaze Star, a nova that occurs every 80 years in the Corona Borealis constellation. Steve Flanders, outreach coordinator for Palomar Observatory, shows the observatory’s Gattini-IR telescope, which Caltech professor Mansi Kasliwal’s team will use to observe the Blaze star explosion. This …
An international team of astrophysicists have found an oversized black hole population of more than 100 in the centre of a unique star cluster. In the study, published in the journal Nature Astronomy, the team found that Palomar 5 formed with a lower black hole fraction, but stars escaped more efficiently than black holes, such that the black hole fraction …
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