
The Heavens in January 1929

The Heavens in January 1929

The Heavens in December 1928

Calculating Orbits
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

Asteroid Hunting
Astronomers Now Conduct the Search for Asteroids or "Pocket Planets" by Modern Mass-Production Methods. Is There an Undiscovered Planet Beyond Neptune?

The Heavens in October 1928

World Astronomers Meet
Every Six Years an International Convention of Astronomers Is Held. What Kind of Affairs Are Transacted at These Cosmopolitan Gatherings?

The Heavens in September 1928

Animating Jupiter
For the First Time Direct Motion Pictures of a Rotating Planet Have Been Made-- Astronomical Correspondence from England

What Becomes of the Starlight?
If Space Is Infinite and Finally Empty, the Energy Radiated From the Stars Must Go On Forever; But if Space is "Curved"—What Then?

The Heavens in August 1928

Problems of Solar Research
Many Perplexing Puzzles Have Given Way to Astrophysical Research, but Enough Remain to Keep Astrophysicists Occupied

The Heavens in July 1928

Sun-spots in Weather Prediction
It Is Now Impossible to Predict the Weather From Sun-spots, and Such Predictions Need Not be Taken Seriously

The Heavens in June 1928

The Heavens in May 1928

Another Astronomical Puzzle Solved
The Problem of the Nature of the Peculiar "Planetary Nebulae" Gives Way to the Modern Astrophysicist

Comets
The Past Year Has Provided Several Unusually Interesting Comets. Recent Computations Indicate That One Comet's Orbit Extends Half Way to the Nearest Fixed Star

The Heavens in February 1928

Has the Universe a Limit?
It Is Easy to Prove That the Stars Are Not Infinite in Number, and That the Universe Is Finite. How Large, Then, Is It?

A Scientific Ghost Laid
Fully Investigated, the Supposed Element Nebulium Turns Out to be Nothing but Common Everyday Air

The Heavens in January 1928

The Heavens in December 1927

The Stars of the Manger
Ten Co-operating Astronomical Observatories Have Revealed that the Little Cluster Known as Praesepe—"The Manger"—Contains Over 350 Stars Traveling Side by Side Through Interstellar Space

The Heavens in November 1927