Latest articles by Calla Cofield
Newfound Alien Planet Is Best Place Yet to Search for Life
A newly discovered exoplanet may jump to the top of the list of places where scientists should go looking for alien life.
'Women of NASA' Lego Set: Q&A with Creator Maia Weinstock
Science writer Maia Weinstock, the creator of the recently announced Women of NASA Lego set, talked with Space.com.
SpaceX to Fly Passengers On Private Trip Around the Moon in 2018
SpaceX, the private spaceflight company founded by billionaire Elon Musk, will launch two paying customers on a week-long trip around the moon and back to Earth in 2018.
Brilliant Fireball Streaks Over Milwaukee, Wows Skywatchers (Videos)
A brilliant, bright-green meteor blazed through the sky just north of Milwaukee early this morning (Feb. 6), and likely sprinkled space rocks into Lake Michigan.
New Method Could Aid Search for Life on Alien Worlds
A newly proposed technique could make it possible to search for life on alien planets, like Proxima b, much sooner than scientists had expected.
Mysterious Burst of Radio Waves Traced to Tiny Galaxy
Incredibly intense, blindingly bright bursts of radio waves known as FRBs are a cosmic mystery, but for the first time, astronomers have traced one of these events back to its home galaxy.
Space Junk Solution? Japan Would Use a Tether to Nab Debris & Destroy It
A new technology that would use a roughly half-mile-long tether to grab large pieces of space debris and dispose of them is being tested in space.
1st Evidence of Strange Quantum Effect Possibly Seen in Empty Space
A strange quantum phenomenon predicted more than 80 years ago may have finally been observed in nature, thanks to a neutron star.
'14 Minutes from Earth' Highlights Perils of Death-Defying Skydive
A new documentary chronicles the years-long journey of former Google executive Alan Eustace to complete the highest-altitude skydive in history.
Solar Storm Lit Up Parts of Northern US with Auroras
A moderate geomagnetic storm in Earth's magnetic field likely created some luminous auroras in the northern United States last night (Oct. 25).
New Dwarf Planet Found in Our Solar System
A new face has been added to the solar system's family portrait: Scientists have discovered a new dwarf planet looping around the sun in the region beyond Pluto.
The Universe Is Directionless, Study Finds
The universe, it turns out, appears the same in every direction. A new study looking at the large-scale structure of the cosmos upheld a long-standing assumption and found no sign of directionality.
Mock Mars Explorers Emerge from Habitat to End Year of Isolation in Hawaii
A crew of six "astronauts" returned to Earth Sunday (Aug. 28), after a year-long mock mission to Mars.
U-F-NO! NASA Shoots Down Speculation Over Space Station Video
NASA shot down an internet rumor that a live camera on the International Space Station was intentionally turned off after the video feed showed a small, bright object just above Earth.
Spectacular Aurora Seen Over Jupiter
Bright blue auroras at Jupiter's north and south poles are putting on a veritable fireworks show just before the July 4 arrival of the Juno probe.
Gravitational Wave Detector Finds Double Colliding Black Holes — Again (Woot!)
Distortions in the fabric of space-time, predicted by Albert Einstein a century ago, have been directly detected for the second time.
See the Sharpest-Ever View of Mercury's Transit Across the Sun
A new video shows the highest- spatial- resolution view of Mercury migrating across the surface of the sun. The images were captured by the New Solar Telescope in California, on May 9.
Are We Alone? Scientists Discuss the Search for Life and Odds of E.T.
What are the odds that life exists elsewhere in the universe? A scientist and a historian talked recently about updating that estimation, at a major physics meeting.
Mercury Finishes Its Run Across the Sun
The 2016 transit of Mercury has come to a close. The solar system's smallest planet took about 7.5 hours to pass across the disk of the sun, and was seen by sky watchers all over the globe.
