In principle, discovering new exoplanets is pretty easy. Simply measure the brightness of a star over time, and when a planet passes in front of the star, the brightness will dim slightly. The more the brightness dips, the larger the planet in relation to the star. This transit method is so effective it is how we have found the majority of exoplanets. But astronomers want to do much more than simply discover planets, and for that you need to dive into the details.
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SpaceX to launch 4 Falcon Heavy rockets as part of newest U.S. national security missions award
A Falcon Heavy roars passed the Moon as it launches the X-37B for the U.S. military. Image: Michael Cain/Spaceflight Now.
The latest missions carrying payloads for the U.S. Space Force (USSF) and the National Reconnaissance Office (NRO) were announced on Friday with a combined value of $1.142 billion. SpaceX was tasked with five missions and United Launch Alliance (ULA) received two.
This Week In Space podcast: Episode 180 — NASA is Closed for Business
On Episode 180 of This Week In Space, Rod Pyle and Tariq Malik discuss the headlines, from the shutdown of NASA to the risky dismantling of the space shuttle Discovery (because Texas insists).
A walk across Alaska's Arctic sea ice brings to life the losses that appear in climate data
An expert discusses the many ways that Alaska's arctic sea ice melt is affecting the lives of those who live in the area.
DWARFLAB DWARF 3 smart telescope review
Does this compact and portable smart telescope provide an affordable way for beginners to get started with astroimaging?
Meteor mania: the ultimate meteor space quiz
This quiz will take you on a journey through fiery facts, explosive history, and the science behind these fireballs.
World Space Week 2025 explores what it means to live beyond Earth
World Space Week 2025 (Oct. 4–10) explores the theme "Living in Space," with global events highlighting the challenges and future of life beyond Earth.
International Observe the Moon Night 2025: 4 things to see on the lunar surface on Oct. 4
Grab your telescope and hunt down these four lunar features to celebrate International Observe the Moon Night 2025 on Oct. 4.
ESA inaugurates deep space antenna in Australia
The European Space Agency (ESA) has expanded its capability to communicate with scientific, exploration and space safety missions across our Solar System with the inauguration of a new 35-m diameter deep space antenna – the fourth for Estrack, ESA’s deep space tracking network.
Take a Flight Over the Martian Surface with the ESA's Mars Express
For more than twenty years, the Mars Express orbiter has studied the Red Planet and remains the European Space Agency's (ESA) only operational mission. In that time, it has provided the most complete map of the Martian atmosphere and its chemical composition. It has also studied Mars' innermost moon (Phobos) in stunning detail, and traced the flow channels, delta fans, and chaos terrain that demonstrate that liquid water once flowed on the planet's surface. In addition, the images taken by the orbiter have been used to create detailed mosaics that have breathtaking 3D views of the landscape.
Astronauts work through the U.S. government shutdown | On the International Space Station Sept. 29-Oct. 3, 2025
The Expedition 73 crew continued their science research and maintenance work aboard the International Space Station this week, despite the start of a U.S. government shutdown back on Earth.
NASA Faces Government Shutdown, Funding Fears Rise
While civil servants are furloughed or working without pay, funding for NASA remains uncertain.
Astrophotographers capture dazzling new views of Comet C/2025 A6 (Lemmon) as it brightens for October skies
See stunning photos of Comet C/2025 A6 (Lemmon) as it brightens ahead of a possible naked eye appearance in mid-October.
'Alien: Earth' predicts a transhumanist future, but could we ever digitize human consciousness? We asked the experts (exclusive)
Alien: Earth suggests a future where consciousness isn't confined to the body you're born in, but is this a realistic possibility, or merely science fiction? We spoke to experts to find out.
Blue Origin reveals space tourists to launch on next New Shepard rocket
Jeff Bezos' Blue Origin just announced the passenger list for NS-36, the company's 15th space tourism launch.
Catching the October Action With Jupiter’s Moons
Watch Jupiter and its major moons undergo a complex series of events in October.
Two Quasars From the Early Universe Provide Clues About Galactic Evolution
One of the greatest accomplishments of the James Webb Space Telescope is the way it has allowed scientists to examine galaxies that existed when the Universe was very young. This is one of the major objectives that informed Webb's design, which was to provide high-resolution images of the earliest galaxies, allowing astronomers and cosmologists to gain a better understanding of how they have evolved over time. Intrinsic to this is the study of early massive black holes that have since evolved into the supermassive black holes (SMBHs) that reside at the centers of galaxies today.
SpaceX launches Starlink satellites on 125th Falcon 9 mission of the year (video)
SpaceX sent 28 more of its Starlink satellites skyward from Vandenberg Space Force Base in California today (Oct. 3). It was the company's 125th Falcon 9 launch of the year already.
'Alien: Rogue Incursion Evolved Edition' drops the VR requirement, offering serviceable Aliens thrills, anytime, anywhere (review)
Rogue Incursion's non-VR edition isn't among the finest Alien games of all time, but Zula Hendricks' video game debut is no snoozer.
See the moon and Saturn put on a sky show together on Oct. 5
Look up Oct. 5: the nearly Harvest Moon will guide you to Saturn, where a telescope reveals its famous rings — even if they're just a thin line for now.
Surprise asteroid flies by Earth at only 250 miles away (video)
An asteroid, called 2025 TF, safely passed within roughly 250 miles (400 km) of our planet on Sept. 30 after surprising astronomers.
