Stefanie Waldek
Space.com contributing writer Stefanie Waldek is a self-taught space nerd and aviation geek who is passionate about all things spaceflight and astronomy. With a background in travel and design journalism, as well as a Bachelor of Arts degree from New York University, she specializes in the budding space tourism industry and Earth-based astrotourism. In her free time, you can find her watching rocket launches or looking up at the stars, wondering what is out there. Learn more about her work at www.stefaniewaldek.com.
Latest articles by Stefanie Waldek

This tiny space rock might be the 1st physical evidence of a rare supernova
By Stefanie Waldek published
Scientists who analyzed the chemical composition of a space rock called the Hypatia stone suspect they have discovered evidence of a rare type of supernova.

Scientists witness a white dwarf's massive X-ray explosion for the 1st time ever
By Stefanie Waldek published
European scientists used the eROSITA X-ray telescope to observe a white dwarf nova for the first time.

Amalthea: Jupiter’s unusual inner moon
By Stefanie Waldek last updated
Reference Learn about Jupiter’s weird inner moon Amalthea. It was not only the fifth Jovian satellite to be discovered, but it is also the fifth-largest.

The Super Flower Blood Moon eclipse will leave these lunar spacecraft in the dark
By Stefanie Waldek published
The Super Flower Blood Moon lunar eclipse means solar power trouble for spacecraft on the moon

Alpha particles and alpha radiation: Explained
By Stefanie Waldek published
Reference Alpha particles, also known as alpha radiation, are the star players in the game of alpha decay — here's everything you need to know.

A particle accelerator is now colder than space to produce 1 million X-ray pulses a second
By Stefanie Waldek published
At that temperature, the Linac Coherent Light Source (LCLS) X-ray free-electron laser will be able to accelerate electrons close to the speed of light.

Watch the Event Horizon Telescope's 'groundbreaking' Milky Way discovery online today
By Stefanie Waldek last updated
Science institutions around the world will stream press conferences announcing the discovery; here's your guide to tuning in.

Mars sports 'invisible' frost and dust avalanches, and scientists may finally know why
By Stefanie Waldek published
Martian frost may be camouflaged by dust, which could cause dust avalanches.

Rocky alien worlds may need to be young to support life
By Stefanie Waldek published
Scientists suggest that one of the key characteristics of a life-supporting, rocky exoplanet is that it needs to be young enough to generate heat through radioactive decay.

A total lunar eclipse will turn the moon red the night of May 15
By Stefanie Waldek last updated
This year's first lunar eclipse — one of two — will be able to be seen across the majority of the Americas.

Dark Energy Camera spies 'galactic ballet' of galaxies in stunning space photo
By Stefanie Waldek published

Ground-based radar could be one of our best tools against asteroids, new decadal survey finds
By Stefanie Waldek last updated
According to the new decadal survey, one of the best tools to help protect the planet against the impact of near-Earth Objects (NEOs) is ground-based planetary radar.

These rare galaxies aren't forming stars like they should, and scientists don't know why
By Stefanie Waldek published
Post-starburst galaxies were once thought to expel their star-forming gas, creating a dormant galaxy. But new data shows otherwise.

Saturn's weird moon Titan looks a bit like Earth, and scientists might finally know why
By Stefanie Waldek published
A new theory explains why Saturn's moon Titan looks a bit like Earth, though made of completely different stuff.

Strange Mars rock type points to extremely violent volcanic eruptions
By Stefanie Waldek published
An unusual rock type spotted by two Mars rovers may indicate that the Martian landscape was shaped by cataclysmic volcanic eruptions.

Fireball! Scientists advise meteorites may be scattered across southern Ontario
By Stefanie Waldek published
On Sunday (April 17), skywatching cameras in Ontario recorded a massive fireball that likely produced tens to hundreds of grams of meteorites.

Violent stellar explosion produces highest-energy gamma-rays ever observed from a nova
By Stefanie Waldek published
The nova system RS Ophiuchi produced extremely high-energy gamma-rays in its most recent explosion, according to observations by the dual MAGIC telescopes in Spain's Canary Islands.

Overlooked gravitational wave signals point to 'exotic' black hole scenarios
By Stefanie Waldek published
In a new analysis of their gravitational wave data, scientists with the international LIGO-Virgo Collaboration have discovered 10 new examples of merging binary black holes.

Pow! Scientists spot new 'micronova' stellar explosion
By Stefanie Waldek published
Astronomers have observed and identified a new type of thermonuclear stellar explosion — a micronova. It's a million times less powerful than a standard nova and lasts just a few hours.

Butterfly Nebula glows red in spectacular image from NASA's Spitzer Space Telescope
By Stefanie Waldek published
NASA's Spitzer Space Telescope captured an image of the aptly named Butterfly Nebula, also known as Westerhout 40 (W40).

NASA aiming for big 2023 thanks to generous budget request
By Stefanie Waldek published
The $26 billion NASA budget allocation for 2023 will help advance the agency's Artemis program, space and Earth science efforts, X-plane development, and commercial partnerships.

A private Ax-1 astronaut will test making a liquid telescope mirror in space
By Stefanie Waldek published
Ax-1's Mission Specialist Eytan Stibbe will perform the Fluidic Telescope Experiment (FLUTE), investigating the use of liquids to construct telescope lenses in microgravity.

We're two years away from the Great North American Solar Eclipse of April 8, 2024!
By Stefanie Waldek last updated
Book your travel, buy your glasses, and get ready for the show of the decade on April 8, 2024

James Webb Space Telescope's most heat-sensitive instrument continues cooling to absolute zero
By Stefanie Waldek last updated
The James Webb Space Telescope's MIRI instrument needs to cool down almost to absolute zero, the temperature where the motion of atoms stops, before it can start observing the universe.
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