Latest articles by Stephanie Pappas
China finally admits its hibernating Mars rover may never wake up
The Zhurong Mars rover never woke up from a planned hibernation, and the head of the mission team has now revealed why.
Scientists find weird holes on the ocean floor spewing ancient fluids 'like a fire hose'
Understanding the movement of fluids in the Cascadia subduction zone can help researchers pinpoint the risk of earthquakes
AI's 'unsettling' rollout is exposing its flaws. How concerned should we be?
AI isn't close to becoming sentient, but it could be disruptive anyway.
The surface of the ocean is now so hot it's broken every record since satellite measurements began
The upper levels of the ocean have never been this hot. Blame the end of La Niña and the ever-present heating effect of climate change.
'Green Monster' supernova is the youngest in the Milky Way, James Webb telescope reveals
New James Webb Space Telescope images reveal the grisly past of Cassiopeia A, the youngest known supernova remnant in the Milky Way.
Are aliens real?
Are aliens real? While there is no current evidence for extraterrestrial life anywhere in the universe, scientists are still optimistic.
Mathematicians make rare breakthrough on notoriously tricky 'Ramsey number' problem
The bounds on Ramsey numbers, which describe relationships between nodes in a network, have been narrowed.
Brightest gamma-ray burst ever detected defies explanation
Scientists are taking a closer look at the afterglow left by the brightest gamma-ray burst ever recorded, and what they see doesn't fit with any theoretical models.
13 of the biggest natural disasters in history
Reference Earthquakes, hurricanes and volcanoes have taken countless lives and caused immeasurable damage throughout history.
Extinction-level asteroid impacts could be far more common than we thought, controversial study suggests
New research claims that giant space rocks hit Earth far more often than has been estimated. But some scientists are skeptical.
'Oumuamua isn't an alien spaceship — it's a rock that's farting hydrogen, new study suggests
The release of hydrogen from within 'Oumuamua may explain some of the interstellar object's strange behavior.
Skyscraper-size asteroid will get closer to Earth than the moon on Saturday
Asteroid 2023 DZ2 will zip between Earth and the moon's orbit on March 25 and may be visible with the right telescope.
Watch 'unprecedented' animation showcasing 100 million years of Earth history
A new model shows how the planet's surface evolved over the past 100 million years, from the shifting of tectonic plates to the movement of sediments.
COVID pandemic had 'minimal' effect on mental health, study says. Is that true?
A new study finds that COVID-19 had minimal mental health impacts on the population, consistent with other research suggesting that people are resilient.
Watch the full 'Worm Moon' wriggle into the sky on March 7
The March full moon is known as the Worm Moon. It will be at its fullest at 7:40 a.m. EST on March 7, 2023.
Bright new comet discovered zooming toward the sun could outshine the stars next year
The newly discovered comet C/2023 A3 is making a close approach around the sun for the first time in 80,000 years, and might be as bright as a star in fall 2024.
China's Mars rover may be dead in the dust, new NASA images reveal
The Mars rover Zhurong hasn't moved since last fall, new orbiter images confirm, suggesting that the Chinese rover may be at the end of its lifespan.
'Building blocks of life' recovered from asteroid Ryugu are older than the solar system itself
The first analyses of samples brought back from the asteroid Ryugu show that this space rock contains some of the molecules needed for life.
'Microdiamonds' discovered at French winery point to ancient meteor crater below the vines
A vineyard sits within an old impact crater in southern France, new research reveals.
Atrial fibrillation and arrhythmia: Causes, symptoms and treatment
Atrial fibrillation is a heart condition that causes an irregular heart rate. Sometimes, there can be no symptoms.
NASA rover snaps photos of ancient 'waves' carved into Mars mountainside
NASA's Curiosity Mars rover has photographed clear signs of ripples locked into a Martian rock, a sign of an ancient lake on the Red Planet's surface.
Doomsday Glacier is melting slower than previously thought — but it's still in big trouble
Thwaites Glacier in West Antarctica, known as the Doomsday Glacier for the role its melt could play in global sea level rise, is melting more slowly than previously estimated, new research finds. But the glacier is still in trouble.
