Astronomy

Here, we study astronomy from a Christian perspective.

Even Goldilocks planets need a well-behaved star

There are about 4000 planets that have been so far discovered around other stars in the universe. Some of them even have the right distance to size

Symbiotic R Aquarii

A long recognized naked-eye variable star, R Aquarii is actually an interacting binary star system, two stars that seem to have a close, symbiotic

The M81 Galaxy Group through the Integrated Flux ...

Distant galaxies and nearby nebulas highlight this deep image of the M81 Group of galaxies. First and foremost in this 80-exposure mosaic is the gr

M1 Galaxy - The Crab Nebula

The Crab Nebula is cataloged as M1, the first on Charles Messier's famous list of things which are not comets. In fact, the Crab is now known t

M1: The Incredible Expanding Crab

The Crab Nebula is cataloged as M1, the first on Charles Messier's famous list of things which are not comets. In fact, the Crab is now known t

Is the sun getting brighter?

Through internal nuclear reactions, hydrogen atoms inside the Sun are converted into helium atoms all the time. Over time, this causes a change in

Where do Leonids come from?

In mid-November each year, our Earth passes through the remains of the tail of Comet Tempel-Tuttle. These remains are a bunch of rocks floating in

Where do Perseids come from

Beginning in the late July and peaking around August 12th each year, the earth passes through the remains of the tail of a comet called Comet Swift

Nicolaus Copernicus Biography

His father died when Nicolaus was 10 years old. So he was taken care of by his uncle Lucas Waczenrode, a clergyman. At age 15, his un

What is a red-shift?

Here is a picture of the electromagnetic spectrum. Electromagnetic Spectrum

Light as a wave and as a particle

What is light? To be truthful, it's a mystery. We don't really know what it is. But, throughout the years, we learned some things about it.

Legacy of Tycho Brahe as an astronomer

Tycho Brahe was a nobleman from an important Danish family. During his university years, he was studying law. But his real passion was mathematics

How is the composition of a space object determine...

When an electron in an atom drops from one energy level to another, it gives off a specific amount of energy. It turns out that each element in the

What is the north star?

All the visible stars in the night sky change locations. They move from east to west with seasons. But one star appears to be in the

Number of satellites orbiting the earth

There are around 13,000 artificial satellites circling our planet. They are monitored by the U.S. government. As of early 2013, 1046

What is Dark Matter?

Dark matter is... dark, as in something you can't see, as in something we are clueless about. The idea of dark matter is not anyt

Organization of the cosmos

The stuff of the cosmos is organized in units we call galaxies. Galaxies consist of stars, planets, and nebulae. Dense concentrations of stars are

What's a Doppler Effect?

Doppler effect is stretching or compression of a wave as it moves. A good illustration would be to listen to a car zoom by you. As the car passes y

Electromagnetic Spectrum

The electronmagnetic spectrum is an array of light waves of different wavelengths. A wavelength is the distance between consecutive peaks of a wave

The Big Bang Theory: Current Dilemmas

This article explores the realistic challanges an early universe would experience if it tried exploding out of itself in the beginning.

When are the meteor showers?

When are the meteor showers, and what causes them