on the Proxima Centauri planet

According to ESO’s latest press release, there is indeed a small slightly-larger-than-Earth-mass planet (1.3 earth masses) in orbit of the closest star to the solar system, Proxima Centauri. It’s even close enough to the star that liquid water could exist on the surface. That’s mighty close indeed – the year is only 11 days long!…

on the objects orbiting KIC 8462852 and the things they might be (part 4)

KIC 8462852 (or Tabby’s Star), the “most mysterious star in the Galaxy” is just becoming visible in the dawn sky after spending October-early May behind the Sun, and astronomical observations are starting up again as it becomes available to telescopes. With them comes a new opportunity to get involved in the study of this fascinating object.

on TRAPPIST-1

TRAPPIST-1 (also known as 2MASS J23062928-0502285, which handily contains its location on the sky) is about 12 parsecs away, or 39.5 light years. That means it’s one of the closest 500 stars to the Sun, and we now know it has THREE planets. And if that’s not enough, the planets are all in the habitable…

on Gaia

Our knowledge of where things are in space is going to be changed forever. Over the summer, the European Space Agency’s Gaia mission is going to release its first data, and with it, distances to two million stars. Eventually, once the full mission is complete, there will be distances to somewhere between one and three BILLION stars. This is…

on the Status of JWST

The James Webb Space Telescope isn’t actually complete yet, but its mirror is now together. As has been stressed repeatedly in places like Twitter, this sight isn’t an unfamiliar one, but this time it’s not a model or a computer animation… it’s the real thing. And that means the James Webb Space Telescope (JWST) is…

on Second-Wave Planets

By “second-wave planets” I mean a planet forming long after the protoplanetary phase of the star system (it’s not the technical term, and I’m not even entirely sure there IS one). Can that happen? It’s entirely possible, and astronomers may have now seen evidence of that.