Stories by Shannon Hall

The possibility of liquid water beneath the surface of Saturn’s moon Mimas may offer clues to how such seas form, and another spot to search for life

Studies show that vaccination against COVID during pregnancy provides a powerful safeguard for vulnerable infants too young to receive the vaccine on their own

New observations from the James Webb Space Telescope are exposing the pathways that water takes to reach terrestrial planets

Several new studies reveal that getting multiple COVID vaccine doses provides strong protection against lingering symptoms

A brain drain from NASA’s Jet Propulsion Laboratory could pose problems for the space agency’s ambitious science plans

Here’s why Long COVID may be declining and what we know about the trend so far

At times, the enormous BlueWalker 3 telecommunications satellite is brighter than some of the most iconic stars visible from Earth

Delays and budgetary overruns are causing many to worry that NASA’s ambitious planetary science program is at a breaking point

Multiple obstacles might make it hard for NASA to turn its dream of ice giant exploration into a reality any time soon

Fireworks display from rare dying star is unlike anything astronomers have seen

The variants appear to sneak past the immune system, but vaccines will likely continue to hold strong

A controversial new theory suggests the Milky Way galaxy’s arms sent comets hurtling toward early Earth, where impacts built new continental crust

The result offers a sneak peek at the observatory’s transformative potential for studying worlds beyond the solar system

Although the risk of long COVID is not insignificant, it is much lower than previously thought

Surveying the billions of tiny microbial astronauts that dwell within the orbital laboratory could help us prepare for human voyages to Mars

A recent study shows how Venus could have explosively changed from habitable to deadly

COVID-19 is often mild in infants. Learning why could help scientists better understand the disease—and point the way toward possible treatments

The ancient supervolcano under the national park was much more explosive in its early history and could be slowing down, a new study suggests

Heavy rains may have put pressure on the Hawaiian volcano’s underground plumbing, setting off its major 2018 eruption

Fiber-optic cables stretching below cities, through glaciers and along the seafloor could record earthquakes and more

The river is due to lose up to 31 percent of its flow by midcentury—an alarming trend that could affect 40 million people

By probing close-in worlds, the discovery will help astronomers better understand how planets form and evolve

A new census of the universe’s most luminous objects brings us closer to solving why some of them seem to disappear

Their data will also bolster climate models that forecast extreme weather where we all live