Is Mars Bigger Than Earth?
[/caption] Occasionally, a reader asks ''is Mars bigger than Earth?''. No, Mars is about one half of the size of…
What Percentage of the Earth’s Land Surface is Desert?
[/caption] Seen from space, the majority of the Earth's surface is covered by oceans - that makes up 71% of…
First High-Res, Low Frequency Radio Image from LOFAR Array
[/caption] Just eight of the eventual forty-four antenna stations for the LOw Frequency ARray (LOFAR) were combined to produce the…
Who Discovered the Milky Way?
[/caption] Head outside at night, far away from bright cities and you'll see a beautiful streak of light splashed across…
How Hot is the Core of the Earth?
[/caption] Volcanoes occur when hot magma from inside the Earth reaches the surface and erupts as lava, ash and rock.…
Astronomy Cast Ep. 186: History of Astronomy, Part 4: The Beginning of Modern Astronomy
With our proper place in the Universe worked out, and some powerful telescopes to probe the cosmos, astronomers started making…
Astronomy Cast Ep. 185: History of Astronomy, Part 3: The Renaissance
Now we reach time with names that many of you will be familiar: Galileo, Kepler, Copernicus. This is an age…
Carnival of Space #156
This week's Carnival of Space is hosted by The Spacewriter -- Carolyn Collins Petersen -- over at The Spacewriter's Ramblings.…
How Are Shield Volcanoes Formed?
[/caption] Shield volcanoes are some of the largest volcanoes in the world. For example, Mauna Kea and Mauna Loa on…
Is the Earth Bigger Than the Sun?
[/caption] I got this strange question by email a few days ago, so I thought I'd tackle it: "Is the…