Earth
A Human Migration to Space is NOT so Inevitable, says New Research
A new study looks at what it takes to survive beyond Earth, raising serious questions about whether or not human…
Water’s Epic Journey to Earth Began Before the Sun Formed
The origins of Earth's water is a complicated mystery that scientists have been untangling for decades. Life is impossible without…
The Earth has an Even More Inner Core, and it's a Ball of Solid Metal
Based on seismic data from about 200 earthquakes in the past decade, a team of Australian scientists found evidence of…
Why are Earth’s Hemispheres the Same Brightness? New Research Solves a 50-year-old Mystery.
NASA’s Apollo program most notably explored the Moon. But it also helped us study the Earth as well, as it…
A new Propulsion System Could Levitate Vehicles in the Earth’s Upper Atmosphere
Sometimes it's hard to remember that NASA also does atmospheric research too. While typically thought of as the province of…
Light Pollution is Obscuring the Night Sky. RIP Stargazing
A citizen science initiative called Globe at Night has some sobering news for humanity. Our artificial light is drowning out…
Could Next-Generation Telescopes See That Earth Has Life?
While the Earth absorbs a lot of energy from the Sun, a lot of it is reflected back into space.…
Should Planetary Defence Take Center Stage?
Throughout the Solar System, planets and moons bear the scars of a past fraught with collisions. The Moon, Mercury, and…
Earth’s Water is 4.5 Billion Years Old
The origin of Earth's water has been an enduring mystery. There are different hypotheses and theories explaining how the water…
To Fight Climate Change, We Could Block the Sun. A Lightweight Solar Sail Could Make it Feasible
Can we build an enormous umbrella to dim the Sun? Such a feat would be a megaproject on a scale…