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 MoreTag: Astronomy & Observing News
Exploring 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 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.
Read MoreThis Week’s Sky at a Glance, March 12 – 20
The waxing Moon passes between Mars and Aldebaran in the evening sky. Arcturus, the “Spring Star,” climbs up in the east, while wintry Orion tilts down in the southwest. The post This Week's Sky at a Glance, March 12 – 20 appeared first on Sky & Telescope.
Read MoreSee the Latest Stunning Images from Mars
NASA’s Perseverance rover, China’s Tianwen 1, and the United Arab Emirates’ Hope orbiter share their latest photos from Mars. The post See the Latest Stunning Images from Mars appeared first on Sky & Telescope.
Read MoreArecibo’s To-be-determined Future
As cleanup operations are underway at Arecibo Observatory in Puerto Rico, some scientists are proposing a replacement for the esteemed radio dish. The post Arecibo's To-be-determined Future appeared first on Sky & Telescope.
Read MoreMeet Alnilam, Orion’s Belt Buckle
Alnilam, the middle star of Orion’s distinctive belt, is a distant supergiant that will (eventually) end its life in a supernova. The post Meet Alnilam, Orion’s Belt Buckle appeared first on Sky & Telescope.
Read MoreWhat — and Where — Is the North Polar Spur?
Astronomers make the case that a gigantic ridge of gas sticking out of the galactic plane was blown out by a cluster of nearby supernovae. The post What — and Where — Is the North Polar Spur? appeared first on Sky & Telescope.
Read More