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An artist’s depiction of the heliosphere, the Sun’s region of influence in space. Little is known of the actual shape of the heliosphere. NASA

Scientists call the region of space influenced by the Sun the heliosphere – but without an interstellar probe, they don’t know much about its shape

An interstellar probe could help scientists answer fundamental questions about how the Sun influences Earth, space and other planets in the solar system.
A SpaceX Falcon 9 rocket lifts off from a launch pad at the Kennedy Space Center on Jan. 18, 2024 in Cape Canaveral, Fla. Four private astronauts make their way to the International Space Station. (AP Photo/John Raoux)

Space exploration is not a luxury, it’s a necessity

Space exploration is not a waste of resources, but a source of technological and medical advances, a tool for climate monitoring and a source of educational inspiration for youth.
A composite photograph of the solar eclipse on Dec. 26, 2019 in Liwa, United Arab Emirates. (Abed Ismail/Unsplash)

The total solar eclipse is a cosmic spectacle well worth the hype

Eclipses have long fascinated and intrigued people, and anticipation of the total solar eclipse on April 8 is no exception. The beauty, history, mythology and science of eclipses justify the hype.
Existing models have over-estimated the role of north Africa as the primary source of global dust emissions for nearly 30 years. GizemG/Shutterstock

Why we need to rethink what we know about dust

New research reveals our understanding of dust’s role in the environment is far from settled.
In primary production, inorganic carbon is used to build the organic molecules life needs. (Shutterstock)

How much life has ever existed on Earth?

Over two billion years from now, Earth will no longer be able to sustain life. A new study looks at how much life has ever existed and what this means for the discovery of new life-supporting planets.

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