Science

NASA’s Jet Propulsion Lab to lay off hundreds amid Mars mission budget cuts

NASA’s Jet Propulsion Laboratory announced it was laying off 530 on staff or about 8% of its workforce on Tuesday after expected congressional budget cuts kneecapped one of its biggest endeavors, the Mars Sample Return mission.

The Pasadena, California, institution is one of NASA’s major science mission hubs, the home to the majority of Mars missions, including the Perseverance rover currently collecting soil and rock samples as part of that mission.

Genetic diseases: How scientists are working to make DNA repair (almost) a piece of cake

I have always been fascinated by genetics, a branch of biology that helps explain everything from the striking resemblance between different members of a family to the fact that strawberry plants are frost-resistant. It’s an impressive field!

I also have a personal connection to genetics. Growing up, I learned that members of my family had a form of muscular dystrophy called dysferlinopathy. I watched as my mother gradually lost the ability to climb stairs and had to use a cane, then a walker, and finally a wheelchair to get around. Her leg muscles were less and less able to repair themselves and became weaker with time.

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Why now is the time to address humanity’s impact on the moon

Humans have always looked at the sky, using the stars as navigation guides or for spiritual storytelling. Every human civilization has looked to the stars and used celestial movements to measure time and find meaning.

This insatiable thirst for knowledge combined with technological advancements have made it possible for us to dream of travelling in space. These dreams became more and more real after the Second World War, the Industrial Revolution, the Cold War and the large-scale exploitation of the Earth’s resources.

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India's tigers climb high as climate, human pressure rises

Tigers in India have been photographed in high-altitude mountains rarely seen before, with experts suggesting relentless human pressure and a heating climate are driving them from traditional hunting grounds.

Researchers from the Wildlife Institute of India (WII) said they were surprised to find "multiple pictures" of tigers in the mountains of Sikkim -- the Indian state squeezed between Nepal, Bhutan and Tibet -- including one snapped at 3,966 metres (13,011 feet).

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Category 6? Scientists highlight 'growing inadequacy' of current hurricane scale

Building on arguments and warnings that climate campaigners and experts have shared for years, a pair of scientists on Monday published a research article exploring the "growing inadequacy" of the Saffir-Simpson Hurricane Wind Scale and possibly adding a Category 6.

Global heating—driven by human activities, particularly the extraction and use of fossil fuels—is leading to stronger, more dangerous storms that are called hurricanes in the North Atlantic and Northeast Pacific, typhoons in the Northwest Pacific, and tropical cyclones in the South Pacific and Indian oceans.

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SpaceX launch set for NASA science probe once targeted by Trump

A NASA satellite that will look at the tiniest parts of the air and ocean is set for an overnight launch from the Space Coast after a years-long path to the launch pad that staved off repeated attempts by the Trump administration to cancel the mission.

The Plankton, Aerosol Cloud Ocean Ecosystem (PACE) satellite was on the chopping block of Trump’s annual proposed NASA budgets several times as he sought to steer funds away from some climate-focused missions and shift money to deep-space efforts.

Plan for Europe's huge new particle collider takes shape

Europe's CERN laboratory revealed more details Monday about its plans for a huge new particle accelerator that would dwarf the Large Hadron Collider (LHC), ramping up efforts to uncover the underlying secrets of the universe.

If approved, the Future Circular Collider (FCC) would start smashing its first particles together around the middle of this century -- and start its highest-energy collisions around 2070.

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Why do people and animals need to breathe? A biologist explains

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

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What do your blood test results mean? A toxicologist explains the basics

Your blood serves numerous roles to maintain your health. To carry out these functions, blood contains a multitude of components, including red blood cells that transport oxygen, nutrients and hormones; white blood cells that remove waste products and support the immune system; plasma that regulates temperature; and platelets that help with clotting.

Within the blood are also numerous molecules formed as byproducts of normal biochemical functions. When these molecules indicate how your cells are responding to disease, injury or stress, scientists often refer to them as biological markers, or biomarkers. Thus, biomarkers in a blood sample can represent a snapshot of the current biochemical state of your body, and analyzing them can provide information about various aspects of your health.

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Lunar science is entering a new active phase, with commercial launches of landers

For the first time since 1972, NASA is putting science experiments on the Moon in 2024. And thanks to new technologies and public-private partnerships, these projects will open up new realms of scientific possibility. As parts of several projects launching this year, teams of scientists, including myself, will conduct radio astronomy from the south pole and the far side of the Moon.

NASA’s commercial lunar payload services program, or CLPS, will use uncrewed landers to conduct NASA’s first science experiments from the Moon in over 50 years. The CLPS program differs from past space programs. Rather than NASA building the landers and operating the program, commercial companies will do so in a public-private partnership. NASA identified about a dozen companies to serve as vendors for landers that will go to the Moon.

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