pelagornithid

@pelagornithid.bsky.social

Testing the waters...

Can planets emerge from the deaths of stars? 💀 Astronomers looking through Hubble data from 1999 have identified unusual amounts of niobium in the chemical signatures from a white dwarf. 🔭 🧪

Artist's impression of a gaseous planet in the right foreground, seen mostly in silhouette, orbits a small, white star in the background at left. The star is surrounded by a thin, bright white disk tilted from lower left to upper right. A semi-transparent tail of material comes off the planet toward the upper right. Distant stars dot the black background of space. Credit: NASA, ESA, L. Hustak (STScI)

33 years ago today, the Stranger stepped onto the dock of Myst Island for the first time. We can still hear the water splashing against the pilings.

The dock of Myst Island from the original version of the game. A wooden dock ends at a spiral staircase that leads up to giant gears on a hillside. A ship is sunk in the water on the right, and parts of buildings are visible on the left.

Latest module in my German course is about discussing technology. I am not sure whether the terms Transhumanismus, Extropianismus, Singularitarismus, Kosmismus, Rationalismus, Effektiver Altruismus or Longtermismus will be on the exam...

As you can see in the contrast curve... this candidate is right at the limit of what we can see in these data, so we're not going to go guns blazing claiming this planet - but it's consistent with a resonant chain, and it will be accessible to followup JWST/AMI observations with better calibration.

Contrast curve showing known planet e is recovered at many σ significance and planet f just on the boundary.