Jean Tate
What is Loop Quantum Gravity?
The two best theories we have, today, in physics – the Standard Model and General Relativity – are mutually incompatible;…
Stellar Parallax
[/caption] Parallax is the apparent difference in the position (line of sight to) an object, when the object is viewed…
What is Absolute Temperature?
If you measure temperature relative to absolute zero, the temperature is an absolute temperature; absolute zero is 0. The most…
Pillars of Creation
[/caption] The pillars of creation are a part of the emission nebula, or H II region, M16 (also called the…
Megaparsec
[/caption] A megaparsec is a million parsecs (mega- is a prefix meaning million; think of megabyte, or megapixel), and as…
Exobiology
Exobiology (same thing as astrobiology) is about life in space (on other planets, and moons; in other solar systems): where…
Dwarf Star
[/caption] A dwarf star is a star that is not a giant or supergiant … in other words, a dwarf…
Quintessence
Quintessence is one idea – hypothesis – of what dark energy is (remember that dark energy is the shorthand expression…
Rigel
Rigel is the brightest star in the constellation of Orion; despite that, its formal name (one of them anyway) is…