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Posts by
Editors of EarthSky
Smelling sounds with the help of hypnosis
Smelling sounds? Sure, it's possible. Sometimes hypnosis can mingle your senses. You can smell a hand clapping, for example. Read more here.
October 22, 2008
Beef production has high cost to climate
Beef production has a high impact on climate. Eating less red meat can help cut back on the greenhouse gas emissions now implicated in climate change.
October 18, 2008
DNA in plant and animals – what’s the difference?
In the center of every plant cell, from algae to orchids - and in the center of every animal cell, from jellyfish to you and me - there's a copy of the organism's DNA.
October 13, 2008
Study supports rowing for astronaut fitness
Medical researchers want to keep astronauts' hearts healthy in space, so they looked to the sporting world to find the best excercise. Hear about why rowing is best.
October 1, 2008
A U.S. forest overview for the early 21st century
Forests can't be left alone to take care of themselves, says Sally Collins of the U.S. Forest Service.
September 16, 2008
Why are some galaxies shaped liked spirals?
Astronomers believe that galaxies have spiral arms - in part - because galaxies rotate, or spin around, a central axis.
September 11, 2008
How many stars are in the Milky Way?
How many stars in the Milky Way? The estimate for the number of stars in the Milky Way is about 100 billion stars - plus or minus 50 billion.
September 9, 2008
What happens when hurricanes collide?
Hurricanes may start to interact at even a thousand kilometers apart.
September 9, 2008
Interstellar dust and the bright core of the Milky Way
Astronomers estimate that the luminosity of the Milky Way’s “core” is equal to about 10 million suns. Read more about interstellar dust here.
September 4, 2008
At what distance does Earth disappear from view?
Light from Earth becomes too faint to see with the eye alone at around 14 billion kilometers (about 9 billion miles) from our home planet.
September 1, 2008
