New observations of quasars might contradict results derived from the cosmic microwave background, suggesting the universe’s expansion could be accelerating more than we thought.
A recent study collected micrometeorites from urban European rooftops.
Astronomers have discovered a giant cosmic void that explains why our Local Group of galaxies is moving through the universe as fast as it is.
In early evening the Pleiades stand above the Moon, and Aldebaran shines left of it, as shown here.
North American observers can watch the Moon flirt with Earth’s shadow, creating a penumbral lunar eclipse on the evening of February 10th.
Join me for a high-power ride as we seek out baby stars and clotted clouds within the heart of the Orion Nebula.
In astrophotography, to dither means to shift the pointing of the telescope slightly in random directions between exposures. Here’s how it works, and why you should use it.
Download our monthly astronomy podcast to spot Venus and Mars in the west – and a celestial unicorn hiding in plain sight among the stars.