On 14th Aug 2019, a new paper was published in The Astronomical Journal that addresses the question of the quantity of earth like planets. Titled “Occurrence Rates of Planets Orbiting FGK Stars: Combining Kepler DR25, Gaia DR2, and Bayesian Inference” it attempts to answer the question. The abstract explains it as follows: We characterize the occurrence rate of planets, … Read moreHow many Earth Like planets are there?
The bait was offered and various sections of the media rapidly pounced on Oumuamua and devoured it with relish. We are awash with stories such as this … Express: Mysterious interstellar object Oumuamua ‘SENT BY ALIENS’ to survey galaxy – Harvard .. and also the slightly more factually correct variations … Sky News: Cigar-shaped object could be alien spacecraft, … Read moreIs the Interstellar Object Oumuamua an alien spacecraft?
As we build better tools to see and observe how things really are our understanding of the universe grows. Multimessenger astronomy now has a new tool within its array of options. What is Multimessenger Astronomy? There are four different ways of detecting things within the universe. These are electromagnetic radiation, gravitational waves, neutrinos, and cosmic rays. The concept … Read moreNeutrinos open new window into universe
The TL;DR; best possible answer to the extragalactic planets question is “Probably yes”. The degree of fuzziness in the above answer reflects the complexity of what was done and the degree of certainty that surrounds the conclusion reached. We can’t go with “yes”, nor can we go with “No”, but instead the best we have … Read moreHave Astronomers really detected planets in another Galaxy?
There has quite appropriately been an abundance of news and excitement regarding the first observation of gravitational-waves from a pair of inspiraling neutron stars. Most media outlets have been covering it, for example … Washington Post – Scientists detect gravitational waves from a new kind of nova, sparking a new era in astronomy The Guardian – … Read moreThe Alpha source for the news of the LIGO Neutron Star collision