Space
Two new books explore Mars — and what it means to be human
‘Once Upon a Time I Lived on Mars’ and ‘The Sirens of Mars’ are surprisingly apt reads during the pandemic.
Featured Articles in this Issue
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Cover Story
What will astronauts need to survive the dangerous journey to Mars?
Going to Mars, astronauts will need protections from microgravity and radiation, plus miniature medical devices to diagnose problems and help handle emergencies.
Reviews & Previews
Science Visualized
Space
Stunning images of swirling gas and dust may show a planet forming
Infrared images show a spiral of gas and dust around a star 520 light-years away. A smaller, tantalizing twist hints at where a planet is coalescing.
Notebook
Physics
A new device can produce electricity using shadows
Even under low light, this new technology exploits the contrast between light and shade to produce a current that can power small electronics.
Features
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How upcoming missions to Mars will help predict its wild dust storms
Predicting the weather on Mars is essential for landing and keeping rovers — or astronauts — safe on the surface. The next Mars missions will give forecasts a boost.
More Stories from the July 4, 2020 issue
- Chemistry
Here’s a clue to how this tube worm’s slime can glow blue for days
Mucus oozed by a marine tube worm can glow for up to 72 hours. New results suggest that the light may sustain itself through some clever chemistry.
- Ecosystems
Tapirs may be key to reviving the Amazon. All they need to do is poop
Brazilian ecologist Lucas Paolucci is collecting tapir dung to understand how the piglike mammals may help restore degraded rain forests.
- Space
The Milky Way’s giant gas bubbles were seen in visible light for the first time
Variation in the light’s wavelengths could help scientists map the velocity of the gas that makes up the towering structures known as Fermi bubbles.
- Health & Medicine
Taking hydroxychloroquine may not prevent COVID-19 after exposure
Hydroxychloroquine didn’t protect health-care workers from getting sick after being exposed to someone with COVID-19, a new study shows.
- Climate
Rapid sea level rise could drown protective mangrove forests by 2100
Mangroves have kept up with rising water so far, but new research reveals their limits.
- Health & Medicine
Loss of smell and taste may actually be one of the clearest signs of COVID-19
Data from a symptom tracker smartphone app used by millions of people shows two-thirds of positive patients reported losing these senses.
- Humans
The Dead Sea Scrolls contain genetic clues to their origins
Animal DNA is providing researchers with hints on how to assemble what amounts to a giant jigsaw puzzle of ancient manuscript fragments.
- Earth
Chicxulub collision put Earth’s crust in hot water for over a million years
An asteroid impact 66 million years ago caused hot fluids to circulate in the crust, creating conditions that may have been ideal for microbial life.
- Space
A weird cosmic flare called the ‘Cow’ now has company
Scientists have now found three similar luminous, short-lived bursts of light, part of a class known as fast blue optical transients.
- Life
These tube-shaped creatures may be the earliest known parasites
Fossils from over 500 million years ago might be the first known example of parasitism in the fossil record, though the evidence isn’t conclusive.
- Space
A Milky Way flash implicates magnetars as a source of fast radio bursts
A bright radio burst seen from a magnetar in the Milky Way suggests that similar objects produce the mysterious fast radio bursts observed in other galaxies.
- Life
Scientists want to build a Noah’s Ark for the human microbiome
Just as the Svalbard Global Seed Vault protects global crop diversity, the Microbiota Vault may one day protect the microbes on and in our bodies.
- Quantum Physics
This weird quantum state of matter was made in orbit for the first time
Bose-Einstein condensates made on the International Space Station could reach temperatures lower than any known in the universe.
- Space
50 years ago, NASA prepared to launch America’s first space station
In 1970, NASA was building Skylab. The orbiting laboratory led to many scientific firsts but was plagued by technical difficulties.
