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Astronomers can face ‘almost lethal levels’ of solar radiation – so why launch Artemis II during peak solar activity? Space scientist Patricia Reiff explains.

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Image of the Artemis I Orion capsule flying around the moon in 2022.

Astronomy Artemis II is about to take a trip to a record-breaking flight orbiting the moon, giving NASA a rare opportunity to study how deep space affects the human body. After leaving Earth’s protective gravity, the four-person crew will be exposed to space weather – which includes intense bursts of radiation from the sun, known … Read more

The long time of Artemis II – space historian explains why it took more than 50 years to return to the Moon.

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A rocket on a launch pad overlooking the water.

While visiting the National Air and Space Museum in January 2026, a visitor asked this insightful question: “Why did it take so long to return to the Moon?” After all, NASA had the knowledge and technology to send humans to the moon more than 50 years ago as part of the Apollo program. And, as … Read more

Scientists Discover Second Important Fact That Explains Why Visible Water Defies All Laws

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Scientists Discover Second Important Fact That Explains Why Visible Water Defies All Laws

Credit: POSTECH University, South Korea. Water is the most common liquid on Earth, yet it almost defies the laws of thermodynamics. Every known liquid contracts and thickens when cooled. Water does the opposite. As you cool water after it freezes, it shrinks considerably, which is why ice floats easily in ponds, lakes, and oceans. Now, … Read more

Do multiverses exist? An astrologer explains why it depends on how you define ‘truth’.

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Do multiverses exist? An astrologer explains why it depends on how you define 'truth'.

Curious Kids is a series for children of all ages. If you have a question you want an expert to answer, send it to CuriousKidsUS@theconversation.com. Do multiverses exist? If so, what do they look like? How do you get there without wasting time? – Emily, age 9, Pune, Maharashtra, India The concept of multiverse – … Read more