A new nova in Cassiopeia, discovered on March 18th, is bright enough to see in a small telescope. The post Bright Nova Erupts in Cassiopeia appeared first on Sky & Telescope.
Read MoreCategory: Telescopes
Things pointed at space
Astronomy in Pictures: Jupiter’s Aurora, Cosmic Threads & Newborn Stars
This week in pictures: Astronomers have watched auroral storms at Jupiter, imaged strands of the cosmic web, and seen stellar fireworks off the sword of Orion. The post Astronomy in Pictures: Jupiter's Aurora, Cosmic Threads & Newborn Stars appeared first on Sky & Telescope.
Read MoreThis Week’s Sky at a Glance, March 19 – 27
The waxing Moon shines with Mars and Aldebaran on Friday evening the 19th. From there the Moon marches east day by day – first between the horn stars of Taurus, then across Gemini to sidle up to Castor and Pollux on the 22nd. The post This Week's Sky at a Glance, March 19 – 27 appeared first on Sky & Telescope.
Read MoreIs an Ocean of Mars Water Trapped in the Planet’s Crust?
A new study suggests that by 3 billion years ago, most of the Red Planet’s water was locked away in minerals, and it has stayed there ever since. The post Is an Ocean of Mars Water Trapped in the Planet’s Crust? appeared first on Sky & Telescope.
Read MoreNew Studies Agree: The Universe Is Expanding Faster Than Expected
Measurements of elliptical galaxies provide a new way of calculating the current expansion rate of the universe. And the results are adding to a growing controversy. The post New Studies Agree: The Universe Is Expanding Faster Than Expected appeared first on Sky & Telescope.
Read MoreExploring Bright Galaxy Groups in Leo
Leo, the Lion, stands high in the southern sky during the early spring. We visit some of the constellation’s brighter galaxy clumps then go asteroid hunting. The post Exploring Bright Galaxy Groups in Leo appeared first on Sky & Telescope.
Read MoreCan We Expect Seven Interstellar Visitors Per Year?
A new study estimates the number of interstellar objects that fly through the inner solar system every year, and it could be quite a lot. The post Can We Expect Seven Interstellar Visitors Per Year? appeared first on Sky & Telescope.
Read MoreKarma Asteroid Family Might Be Sending Members Near Earth
New simulations have identified the Karma family of asteroids in the main belt as a potential source of near-Earth asteroids. The post Karma Asteroid Family Might Be Sending Members Near Earth appeared first on Sky & Telescope.
Read MoreHow Focal Ratio Affects Your Astro Images
Understand focal ratio to improve your astrophotography. The post How Focal Ratio Affects Your Astro Images appeared first on Sky & Telescope.
Read MoreZodiacal Dust Seen from Earth Might Come from Mars
Much of the solar system’s interplanetary dust — seen as zodiacal light from Earth — might come from Mars. The post Zodiacal Dust Seen from Earth Might Come from Mars appeared first on Sky & Telescope.
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