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Stories 1 - 20 |
Not Quite a
Star, Not Quite
a Planet, but Hotter
Than the Sun
Aug 15, 2023 11:46 AM CDT
Not Quite a Star, Not Quite a Planet, but Hotter Than the Sun
Scientists discover brown dwarf that's up to 90 times the size of Jupiter, nearly 14K degrees
- Israeli researchers have stumbled on a celestial object that "is seriously confronting our notions of what's possible in the universe." That's per Science Alert , which reports on the discovery of a sweltering brown dwarf —an object that falls somewhere between planet and star, but which...
There's a Reason Stars
Jan 19, 2023 6:50 PM CST
There's a Reason Stars Appear Dimmer
Night sky is becoming 10% brighter per year, research shows
- Every year, the night sky grows brighter, and the stars look dimmer. A new study that analyzes data from more than 50,000 amateur stargazers finds that artificial lighting is making the night sky about 10% brighter each year. That's a much faster rate of change than scientists had...
'Earendel' Is Most
Distant Star Ever Seen
Mar 31, 2022 5:06 AM CDT
'Earendel' Is Most Distant Star Ever Seen
Light from long-dead star took 12.8 billion years to reach us
- Scientists are expecting great things from the new James Webb Space Telescope, but its predecessor is still helping them spot cosmic wonders including what is believed to be the most distant star ever seen. Light from Earendel, which got its nickname from the Old English word for morning star,"...
Our 'Nearest Black Hole'
Isn't a Black Hole at All
Mar 2, 2022 12:37 PM CST
Our 'Nearest Black Hole' Isn't a Black Hole at All
New research indicates 'vampire' star is feeding on its neighbor
- European astronomers have put out something of a retraction: that black hole said to be the closest to Earth ever found —well, it doesn't exist. They're not too bothered, however. European Southern Observatory emeritus astronomer Dietrich Baade, co-author of the new research, says their error led to...
'Spooky' Find Could
Be New Kind of Star
Jan 27, 2022 11:18 AM CST
'Spooky' Find Could Be New Kind of Star
Signals never observed before may point to ultra-long period magnetar
- Something in our galaxy was emitting radio wave beams every 20 minutes, unlike anything observed before, and astronomers think they know what it is. "It's definitely not aliens," says Natasha Hurley-Walker, radio astronomer and lead author of a study on the mysterious object, published in the journal...
Millions of Years
After Big Bang,
a 'Cosmic Dawn'
Jun 25, 2021 12:43 PM CDT
Millions of Years After Big Bang, a 'Cosmic Dawn'
Astronomers say they've figured out when first stars began shining
- For his entire working life, Richard Ellis has been obsessed with finding out when the universe's first stars began shining. Now, in a new study published in the
Monthly Notices of the Royal Astronomical Society
journal, Ellis and his team at University College London say they've pinpointed the...
Star Is Seen Dragging
Space-Time With It
Feb 2, 2020 3:30 PM CST
Star Is Seen Dragging Space-Time With It
Looks like Albert Einstein nailed this one
- Rack up another one for Albert Einstein. New research on a pair of stars confirms a prediction from Einstein's general theory of relativity—that a spinning object will drag space-time right along with it, Science Alert reports. Astrophysicists have spotted the effect, known as "frame dragging," in...
Star Will 'Die All Alone' After
Being 'Evicted' by Black Hole
Nov 15, 2019 11:50 AM CST
Star Will 'Die All Alone' After Being 'Evicted' by Black Hole
Launched from Milky Way center, S5-HVS1 is going so fast it won't ever be able to get back to our galaxy
- A "serendipitous discovery" has been made, and it's an exciting but bittersweet one. Five million years ago, a star got too close to what Space.com calls the Milky Way's "heart of darkness"—a supermassive black hole named Sagittarius A* — and got hurled away...
Found in Our Galaxy
May 13, 2019 12:54 PM CDT
Alien Presence Found in Our Galaxy
It's tucked away in the Big Dipper
- Believe in alien life? Try an alien star. There's one in the Big Dipper with a chemical composition unlike any other known star in our galaxy, Space.com reports. Located roughly 60,000 light-years away , the star lacks metals like magnesium but is high in Europium, meaning its chemical...
Jan 18, 2016 7:21 AM CST
Constellation Named for David Bowie
A star on Earth, now a bunch of stars in the heavens
- We may not be able to get a higher power to bring David Bowie back to Earth , but at least we can now see him whenever we look skyward. Ziggy Stardust will be forever memorialized in the cosmos thanks to a group of Belgian astronomers and a Belgian radio station,...
for Alien Signals
Near Bizarre Star
Oct 21, 2015 11:49 AM CDT
Search Begins for Alien Signals Near Bizarre Star
The Allen Telescope Array is all fired up and looking for life
- SETI's wide-range telescope is powered up and trained on KIC 8462852—the curious star in the North Hemisphere that's emitting an odd light pattern . The Allen Telescope Array, located a few hundred miles northeast of San Francisco, is actively hunting for alien signals coming from the star's...
We Owe Our Lives
to These Stars
Jun 21, 2015 9:00 AM CDT
Astronomers Say We Owe Our Lives to These Stars
Galaxy CR7 said to contain some of the universe's earliest stars
- Astronomers peering through the European Southern Observatory's Very Large Telescope in Chile have discovered a faraway galaxy of stars so significant, they say we wouldn't exist without them. The galaxy, known as Cosmos Redshift 7, or CR7—a name inspired by soccer player Cristiano Ronaldo—is three times...
The Stars Could Be 'Singing'
Mar 24, 2015 8:30 AM CDT
The Stars Could Be 'Singing'
But no one can hear it
- The mathematician Pythagoras long ago described "music in the spacing of the spheres," and the idea has influenced astronomy for centuries, Universe Today has noted. Now, scientists have found that the music of the spheres might exist quite literally. Researchers studying the way a laser interacts with plasma...
for 550M Years
Feb 15, 2015 3:05 PM CST
Darkness Reigned for 550M Years
Stars didn't appear until 100M years later than we thought
- After the Big Bang, it was dark for a very, very long time—even longer than experts had previously believed, the
reports. Scientists had thought that the dark period between the Big Bang and the emergence of the first stars lasted about 440 million years, the Press Association reports...
Tiny Find: Stardust From
Beyond Solar System?
Aug 15, 2014 8:52 AM CDT
Tiny Find: Stardust From Beyond Solar System?
Citizen scientists help discover what could be interstellar space dust
- Earth may be host to some far-from-home specks. A NASA spacecraft that sent space samples back to our planet in 2006 captured an astounding find that's just coming to light: seven specks of stardust believed to be the first from outside our solar system. Finding the teeny fragments, captured...
We're About to
Map the Milky Way
Dec 19, 2013 7:37 AM CST
We're About to Map the Milky Way
One of 'most ambitious space missions ever' begins
- While you were sleeping, a truly massive undertaking got under way, one that the BBC terms "one of the most ambitious space missions in history." Europe's Gaia satellite—which has been two decades in the making—launched at 4:12am EST today, setting it on a course...
Earth-Like Planet Spotted
Jan 10, 2013 2:20 PM CST
Earth-Like Planet Spotted
KOI 172.02 orbits star like our sun
- Less than two weeks after astronomers predicted they would find an Earth-like planet some time in 2013, the feat may have already been accomplished. Scientists this week announced at the 221st meeting of American Astronomical Society that the Kepler telescope has found a "super-Earth" whose radius is 1.5...
Milky Way Has
the Size of Ours
Jan 8, 2013 4:39 PM CST
Milky Way Has 17B Planets the Size of Ours
And that's a conservative estimate
- Before we start feeling too special about our home planet, scientists have a message: There are at least 17 billion planets the size of Earth in the Milky Way alone, Space.com reports. About 17% of our galaxy's stars have Earth-size exoplanets closely orbiting them—so 100 billion stars...
Nov 17, 2012 2:28 PM CST
'Homeless' Planet Seen Adrift in Deep Space
It's cold, young, and doesn't orbit a star
- Astronomers have identified a "homeless" planet for the first time and given it a rather un-catchy label: CFBDSIR2149. This young and very cold planet is drifting about 100 light-years away with a group of roughly 30 stars, but isn't orbiting any of them—which makes its blue light...
Giant Star Caught
Aug 22, 2012 3:28 AM CDT
Giant Star Caught Devouring Planet
A similar fate awaits Earth, scientists say
- Astronomers observing the Perseus constellation have caught a glimpse of the fate that awaits our own planet: digestion inside a giant star. Unusual amounts of lithium were detected inside the elderly red giant BD+48 740, and a surviving planet has shifted to a strange elliptical orbit, leading researchers to conclude...
Stories 1 - 20 |
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