Galaxies identified in the eXtreme Deep Field image can be broken up into nearby, distant, and ultra-distant components, with Hubble only revealing the galaxies it’s capable of seeing in its wavelength ranges and at its optical limits. The changing populations...
While the web of dark matter (purple, left) might seem to determine cosmic structure formation on its own, the feedback from normal matter (red, at right) can severely impact the formation of structure on galactic and smaller scales. Both dark...
The gravitational field on Earth varies not only with latitude, but also with altitude and in other ways, particularly due to crustal thickness and the fact that the Earth’s crust effectively floats atop the mantle. As a result, the gravitational...
This map shows the CMB’s polarization signal, as measured by the Planck satellite in 2015. The top and bottom insets show the difference between filtering the data on particular angular scales of 5 degrees and 1/3 of a degree, respectively....
In a traditional Schrodinger’s cat experiment, you do not know whether the outcome of a quantum decay has occurred, leading to the cat’s demise or not. Inside the box, the cat will be either alive or dead, depending on whether...
One of the more novel ways to cook a Thanksgiving turkey is in a deep fryer. However, this method comes along with a great risk of an uncontrolled fire, and following proper safety procedure is key to ensuring that your...
These three “red monster” galaxies, found just 1 billion years after the hot Big Bang, are dusty, massive objects with more than 100 billion solar masses worth of stars inside. Unlike more modern massive galaxies, where no more than 20%...
Today, the Universe has evolved into the complex, life-friendly place we know it to be because we were able to form neutral atoms early on in the Universe. Yet without just the right quantum properties, the formation of stable, neutral...
At left is the iconic view of the Pillars of Creation as seen by Hubble. Beginning in 2022, JWST (at right) has viewed the pillars as well, revealing details such as newly forming stars, faint protostars, and cool gas that...
This image of the Cassiopeia A supernova remnant shows the aftermath of a type II, core-collapse supernova that occurred more than 350 years ago. The supernova remnant glows in a variety of electromagnetic wavelengths, including in various X-ray and infrared...
