Jon Voisey
What <i>is</i> a galaxy? (Vote now!)
[/caption]Classification is key to all sciences, but can often cause debate. Within astronomy, fierce debates have raged over the definition…
The Little Cepheid that Stopped
[/caption] When Hubble first discovered a Cepheid variable in the galaxy M31, the universe grew. Previously, many astronomers had held…
Tiny Stars with a Big Flares
[/caption] For a long time, astronomers have known that stars often have troubled childhoods. They suffer from frequent and violent…
Crab Nebula Flares
[/caption] The Crab Nebula is one of the most popular targets for astronomers of all stripes. It is readily viewable…
Did GD61 Eat a Planetessimal?
[/caption] The primary method by which astronomers hope to study exoplanet atmospheres is by detecting their absorption spectra as they…
First Multi-wavelength Images of an Exoplanet
Colors are important in astronomy. They can be used to get a quick feel for the temperature of stars, map…
First Observational Evidence Other Universes?
In the realm of far out ideas in science, the notion of a multiverse is one of the stranger ones.…
A New Class for Tau Scorpii
Many classes of stars are named for an early, distinguished member of a certain type of stars. For example, Cepheid…
Magnetic Fields on O-Class Stars
[/caption] The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect…
M33’s “Object-X”
Often times, objects that are unremarkable in one portion of the spectra, can often be vivid in others. In M33,…