Travis Lund

What Causes the Cycle of Solar Activity?

What Is a Cryovolcano? The Science of Ice Volcanoes

What Kind of Spectrum Does the Sun Have?

Why Is a Sidereal Day Shorter Than a Solar Day?

Why Is Space Black If the Sun Is There?

How to Find the Kp Index for Aurora Viewing

Why Does Mercury’s Surface Have So Many Crater Impact Scars?

What Is the Spectral Class of a White Dwarf?

How Loud Would the Sun Be If Sound Could Travel Through Space?

Why Does the Moon Rise About 50 Minutes Later Each Day?

What Does the Sun Eat? Explaining Its Fuel and Process

What Causes the Graininess on the Sun?

Can Two Planets Share the Same Orbit?

What Happens First When a Star Begins to Run Out of Fuel?

What Color Are Class M Stars and Why?

What Is the Frequency of the Sun?

What Does Venus Sound Like? From Physics to Recordings

How Does the Composition of a Comet Compare With That of the Sun?

Can Stars Have Rings Like Planets?

What Gives a Star Its Energy? The Power of Fusion