Life on Venus? Astronomers detected phosphine which is a strong signature of life

Life on Venus? Astronomers have detected the first sign of life in the deadly clouds of Venus. They found phosphine which displays a strong signature of life. If we can detect life itself soon, this might be the most exciting news in history.

Backyard Worlds: NASA is asking for volunteers to help find the hypothetical Planet 9

Some astronomers think in our outer solar system there’s a giant, undiscovered world hiding and they call it (for obvious reasons) Planet Nine. Whether it exists, it could be 5-10 times the size of the Earth and orbit Sun hundreds of times farther away than Earth orbiting Sun. Now, a NASA citizen science project called […]

Comet NEOWISE and noctilucent clouds – something we’ve never seen before

Russian space agency Roscosmos published spectacular photos of Comet NEOWISE (C/2020 F3) and noctilucent clouds or polar mesospheric clouds (PMCs) above our beautiful planet Earth. This is something we’ve never seen before. Forming about 45-55 miles (75-90 km) above polar regions in summer, noctilucent clouds are Earth’s uppermost clouds and only visible around twilight. PMCs […]

Spectacular comet photo from the ISS

Russian cosmonaut Ivan Vagner published a spectacular comet photo on his Twitter account (@ivan_mks63). He tweeted both in Russian and in English and said “During the next revolution I tried to capture the C/2020 F3 (NEOWISE) comet a bit closer, the brightest one over the last 7 years. Its tail is quite clearly visible from […]

Planet Nine might not exist, many astronomers now think

This article is originally published on The Conversation with the title of “Why astronomers now doubt there is an undiscovered 9th planet in our solar system”. Samantha Lawler, University of Regina Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system. The presence of Planet Nine has been […]

The Sun is less active than sibling stars, study shows – here’s what that could mean

Andrew Norton, The Open University All stars emit varying amounts of light over time – and the Sun is no exception. Such changes in starlight can help us understand how habitable any planets around other stars are – a very active star may bombard its planets with harmful radiation. Now a new study, published in […]

The oldest material on Earth has been found in a meteorite and it is way older than the Solar System!

Scientists have found the oldest material on Earth in a 7 billion-year-old meteorite – a space rock that is way older than the Earth and even older than our solar system! For comparison, the age of Earth is approximately 4.54 billion years, with an error range of about 50 million years. The Sun is about […]

Planetary confusion: why astronomers keep changing what it means to be a planet

Christopher Palma, Pennsylvania State University As an astronomer, the question I hear the most is why isn’t Pluto a planet anymore? More than 10 years ago, astronomers famously voted to change Pluto’s classification. But the question still comes up.