Astronomers have found a way to estimate the number of stars in the universe.
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Scientists have a good estimate on the staggering number of stars in the universe.
Thousands of the satellites orbiting Earth are small – like this cubical satellite seen here being released from the International Space Station.
In the past decade, the number of satellites in orbit has skyrocketed thanks to tiny electronics and cheap launches. The crowded night sky is posing problems for astronomers and astronauts.
The James Webb Space Telescope is the biggest orbital telescope ever built and is scheduled to be launched into space on Dec. 18, 2021.
The largest orbital telescope ever made will allow astronomers to study the atmospheres of alien planets, learn about how stars form in the Milky Way and peer into the farthest reaches of the universe.
It’s important to understand sex and eroticism in space.
(Photo by Nong Vang on Unsplash)
As space exploration takes off, it will become increasingly important to study and understand sex, intimacy, desire and pleasure off-Earth.
Four people – none of them trained astronauts – launched into orbit aboard a SpaceX Dragon capsule on Sept. 15, 2021.
The Inspiration4 mission sent four civilians to space for three days. Though still funded by a billionaire, the mission is a step forward in the nascent space tourism industry.
The temperature of the Sun’s surface is about 6,000℃. But higher above the surface, in the atmosphere, it suddenly shoots up to more than a million degrees!
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The growth of online and space activity make traditional ideas of national security increasingly outdated.
The universe has a finite age — 13.8 billion years to be exact. So if it had a beginning, why is it so difficult to say for sure whether it will have an end?
Both Jeff Bezos and Richard Branson successfully rode to space on rockets made by their private companies Blue Origin and Virgin Galactic, respectively.
AP Photo/Tony Gutierrez
According to a new poll, people across political and demographic lines think the private space race is good for the future but still just an ego trip for the billionaires involved.
Scientists have been studying lunar samples brought back from Apollo missions to understand the geologic history of the Moon.
Without a magnetic field, the Moon’s surface is exposed to solar wind. These could have been depositing resources like water and potential rocket fuel on the Moon’s surface for billions of years.
Me (top, third from right) with others from the International Space University, in front of the Shuttle Atlantis at NASA’s Kennedy Space Center.
Later this year I will spend time with former NASA astronaut instructors, before receiving high-G training, crew resource management training and spacesuit training, among other skills.
Gravity feels like it’s pulling everything toward Earth, but why?
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Gravity is something every person on Earth intuitively understands: It is what keeps you on the ground. But how come gravity pulls down, rather than pushes up? Einstein came up with the answer.
Now is not the time for rocket men to abandon spaceship Earth.
Artist illustration of an exoplanet.
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Billions of galaxies are in the universe, with billions of stars in every galaxy. Could billions of planets be out there too?
The reason bigger objects in space are round and smaller ones aren’t boils down to gravity. And it’s the same reason mountains on Earth can only grow to a certain height
Glenn, in the NASA mailroom, received letters from fans of all ages.
John Glenn Archives, The Ohio State University
John Glenn would have turned 100 on July 18, 2021. Today’s space program is a giant leap more inclusive than when he made his pioneering orbit of the Earth in 1962.
Virgin Galactic takes off.
Sir Richard Branson’s successful spaceflight marks the beginning of a new chapter for space tourism.
Virgin Galactic’s Unity VSS spacecraft went on a suborbital test flight in May 2021.
Both Virgin Galactic and Blue Origin are sending spacecrafts – and their billionaire founders – into suborbital flight. But what differentiates a suborbital flight from a trip around Earth?
It wasn’t long after Jeff Bezos announced his plans to go to space that Sir Richard Branson joined in, setting a launch date to beat Bezos by nine days.
The worldwide fascination with UFOs started in the late 1940s after a few incidents made the news in the U.S.
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The history of UFOs weaves together public fascination, government secrecy and cultural phenomena. Recent news and shifts in the government’s stance on UFOs are giving new life to the mystery.