
Earth Shine
From the Moon the Earth Would Appear Many Times as Bright as the Moon Appears from the Earth. Interesting New Research on an Old Subject
From the Moon the Earth Would Appear Many Times as Bright as the Moon Appears from the Earth. Interesting New Research on an Old Subject
Astrophysicists Have Just Determined that One Universe of Stars Is Moving Through Space at Five Thousand Times the Speed of a Rifle Bullet
The Eye Is No Judge of the Heat which Each Star Radiates, but a Thermo-Couple Measures It with Precision. The Hotter a Star the Greater the Proportion of Its Radiation We Perceive Visually, but the Very Hottest Stars Radiate Mainly in the Ultra-Violet...
The Ordinary Identification of the Chemical Elements on the Sun by Means of the Spectroscope Has Long Been Possible. The Newest Development Is Quantitative Analysis of These Same Elements...
Accumulated Evidence Indicates that the Whole Galaxy of Billions of Stars Rotates in About 100,000,000 Years
Night Sky: February and March
New Research Reveals the Long Sought Hiding Place of the Central Nucleus of the Galaxy, Confirming the Belief that We Live in a Spiral Nebula
Few Realize How Many Factors Will Have to be Considered in Selecting Scientifically the Best Site for the New 200-Inch Telescope
How the Astronomer Works Out the Orbit of a New Planet. There Is Still Work Enough in Sight to Keep a Single Expert Busy for Ten Thousand Years
Astronomers Now Conduct the Search for Asteroids or "Pocket Planets" by Modern Mass-Production Methods. Is There an Undiscovered Planet Beyond Neptune?
Every Six Years an International Convention of Astronomers Is Held. What Kind of Affairs Are Transacted at These Cosmopolitan Gatherings?
For the First Time Direct Motion Pictures of a Rotating Planet Have Been Made-- Astronomical Correspondence from England
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