Search results for Planet Nine

Environment Oct 24, 2022

Water extraction is key cause of the Darling River drying, study finds

Poor water management and excessive extraction are the primary causes of declining flow and the poor state of Australia's Darling River, a new study has found.

Astronomy Oct 24, 2022

Student uses NASA data to reveal new details on planets in other solar systems

In the past decades, the number of known exoplanets—planets in other solar systems—has skyrocketed. But we're still in the dark about a number of details, including how massive they are and what they're made up of.

Environment Oct 21, 2022

Wildfire smoke may warm the Earth for longer than we thought

Wildfires are a major source of air pollution. They are also predicted to worsen as climate change progresses.

Earth Sciences Oct 19, 2022

Nitrogen boundaries exceeded in many world regions

It has long been known that humanity is exceeding planetary boundaries for nitrogen use. Scientists have now mapped those exceedances regionally for the first time. Whereas countries in north-western Europe and parts of India ...

Space Exploration Oct 19, 2022

Algae could be instrumental in making human exploration of Mars possible

While the world is marveling over the first images and data now coming from NASA's Perseverance rover mission seeking signs of ancient microscopic life on Mars, a team of UNLV scientists is already hard at work on the next ...

Environment Oct 17, 2022

Permafrost emissions must be factored into global climate targets, says study

By the end of this century, permafrost in the rapidly warming Arctic will likely emit as much carbon dioxide and methane into the atmosphere as a large industrial nation, and over time potentially more than the United States ...

Environment Oct 8, 2022

Climate tipping points could lock in unstoppable changes to the planet. How close are they?

Continued greenhouse gas emissions risk triggering climate tipping points. These are self-sustaining shifts in the climate system that would lock-in devastating changes, like sea-level rise, even if all emissions ended.

Earth Sciences Sep 28, 2022

As glaciers melt at an alarming pace, a geologist reflects on the legacy of ice ages and what the future may hold

With continued news of glaciers in Greenland, Antarctica, Alaska and the Alps, as well as other parts of the world, melting far faster than predicted, Tufts Now turned to an expert on ice sheets and the last ice age to better ...

Space Exploration Sep 21, 2022

Mars is littered with 15,694 pounds of human trash from 50 years of robotic exploration

People have been exploring the surface of Mars for over 50 years. According to the United Nations Office for Outer Space Affairs, nations have sent 18 human-made objects to Mars over 14 separate missions. Many of these missions ...

Planetary Sciences Sep 12, 2022

What is the smallest planet? (It's not Pluto.) Taking a closer look at planet sizes.

As elementary schoolers, we learned the order of the planets. Maybe your teacher even had a snappy mnemonic like "My Very Educated Mother Just Served Us Nine Pizzas" or "My Very Educated Mother Just Served Us Nachos" after ...

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