Latest articles by Tereza Pultarova
Perihelion: What is it and when does it occur?
Reference Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).
An industrial project in Chile threatens Earth's darkest sky. 28 leading astronomers signed an open letter urging to move it
"We might lose the ability to observe about 30% of the faintest galaxies. We are at the point of starting to be able to see details of exoplanet atmospheres, but if the sky gets brighter, we may not be able to see those details anymore."
NASA spacecraft were vulnerable to hacking for 3 years and nobody knew. AI found and fixed the flaw in 4 days
An AI start-up has found a vulnerability in security software protecting NASA's ground control communications with satellites in space.
Rare solar flare caused radiation in Earth's atmosphere to spike to highest levels in nearly 20 years, researchers say
Levels of potentially dangerous cosmic radiation in Earth's atmosphere rose to a two-decade high in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun.
Struck by a cosmic ray: Galactic particles may have forced a passenger jet to make an emergency landing
A cosmic ray from a faraway supernova explosion may have sent a packed passenger jet into free fall in late October, forcing an emergency landing.
Europe passes record-breaking space budget while NASA hit with deep cuts
The European Space Agency member states have approved a record-breaking budget for the next three years, including increased funding for science exploration.
1st European to fly to the moon will be German
A German astronaut will be the first European to fly to the moon with a future NASA-led Artemis mission.
NASA renews commitment to Europe's life-hunting Mars rover despite Trump budget cuts
"These confirmations have been given to us in writing, so this is a very important step."
Could satellite-beaming planes and airships make SpaceX's Starlink obsolete?
"When the Stratomast is flying, all these old satellites are going to be in museums."
Will Europe's flagship space science missions survive NASA's budget cuts?
NASA budget cuts proposed by President Donald Trump will cause a significant funding shortfall to Europe's space science missions. But the European Space Agency hopes it can save them.
ESA ships Artemis 4 Orion service module to NASA after Trump tried to cancel it
The European Space Agency has completed the Orion service module for NASA's Artemis 4 mission to the moon, which was saved from cancellation earlier this year by the U.S. Congress
'Shockingly large' amount of sensitive satellite communications are unencrypted and vulnerable to interception, researchers find
A mind-boggling lack of encryption allowed researchers to eavesdrop on satellite links and intercept vast quantities of private communications, including those by government and military officials.
How AI fixed the James Webb Space Telescope's blurry vision
An ultra-high-resolution instrument on board NASA's $10 billion James Webb Space Telescope has been suffering from blurry vision. AI helped fix the problem.
Starlink satellites: Facts, tracking and impact on astronomy
Reference Starlink satellites have been developed by SpaceX to provide internet to remote locations. Here we explore the controversial megaconstellation in more detail.
SpaceX Starlink internet isn't fast enough for Ukraine's combat robots
The amount of bandwidth provided by SpaceX's Starlink satellites is limiting Ukraine's ability to operate ground robots on the frontline of the nation's war against Russia.
Powerful NVIDIA chip launching to orbit next month to pave way for space-based data centers
An NVIDIA GPU is heading toward its record-setting orbital debut, a trip that will test how data centers could work in the final frontier.
Can we dim the sun to fight climate change? Not without risking weather patterns, scientists suggest
Scattering microscopic particles of sulfur in the atmosphere might slow down climate change. It might also change weather patterns.
This company's plan to launch 4,000 massive space mirrors has scientists alarmed: 'From an astronomical perspective, that's pretty catastrophic'
Reflect Orbital has applied for a Federal Communications Commission (FCC) license to launch a giant mirror to space next year.
Could the world's 1st private space telescope help find stars with habitable exoplanets?
The world's first commercial astronomy space telescope will look for stars that may host habitable exoplanets.
Is low Earth orbit getting too crowded? New study rings an alarm bell
Hundreds of satellites may soon be flying in orbital regions that are already too packed to allow safe and long-term operations, a new study suggests.
Ukraine destroys giant radio telescope used by Russian military
One of the world's largest radio telescopes has been destroyed by a Ukrainian drone to prevent Russian forces from using it for military communications.
A Girl Scout was injured in a remote California canyon. Here's how satellites got help to her in minutes
"Without satellite-enabled communication and precise location identification, this rescue could have stretched from hours into days."
SpaceX Starlink satellite photobombs orbital view of secret Chinese air base (photo)
One of SpaceX's broadband-beaming Starlink satellites has been captured overflying a top-secret airbase in China that was photographed by a private American Earth-observation satellite.
