What is fission? By Nola Taylor Redd, Tia Ghose last updated 19 July 23 Fission is the process by which an atom splits into two, generating two smaller atoms and a tremendous amount of energy. Fission powers nuclear bombs and power plants.
What is nuclear fusion? By Nola Taylor Redd, Tia Ghose published 13 December 22 Nuclear fusion is the merging of two light atomic nuclei into one heavier one. If it can be harnessed on Earth, it could generate clean, limitless energy.
Autumn: The cooling-off season By Nola Taylor Redd published 11 March 22 Reference Discover more about the season where the leaves turn red and the temperature drops.
Summer: The warmest season By Nola Taylor Redd published 11 March 22 Reference Everything you ever wanted to know about summer, the hottest season of the year.
Spring: The season of new beginnings By Nola Taylor Redd published 9 March 22 Reference Springtime brings warmer temperatures and a rebirth as nature reawakens.
Winter: The coldest season By Nola Taylor Redd published 8 March 22 Reference Winter, the coldest season of the year, comes between autumn and spring. It is associated with plunging temperatures and icy weather, but its impact and timing change according to location.
The four seasons of the year: spring, summer, autumn (fall) and winter By Nola Taylor Redd published 11 February 22 Reference Seasons are periods of the year with distinct weather conditions and day lengths. Earth's four seasons are spring, summer, autumn (fall) and winter.
Venus, once billed as Earth's twin, is a hothouse (and a tantalizing target in the search for life) By Nola Taylor Redd published 16 September 20 As Earth's twin, Venus offers much in the search for life and habitable worlds.
Death from above? Fireball may have destroyed ancient Syrian village By Nola Taylor Redd published 20 June 20 An ancient Syrian village was destroyed by a fireball from the sky, scientists suspect.
The sun looks like caramel corn in highest-resolution image ever of our star By Nola Taylor Redd published 30 January 20 Hawaii's Inouye Solar Telescope has released its first detailed image of the sun.
Nature Could Have Created Oddball 'Oumuamua, Not Aliens By Nola Taylor Redd published 2 July 19 The debate about 'Oumuamua's nature and origin continues.
Super-Earth Smackdowns May Explain Diverse Worlds By Nola Taylor Redd published 4 February 19 Crashing a giant space rock into a young planet can strip off some or all of its atmosphere, creating a wealth of different types of worlds.
Queen's Brian May Releases 'New Horizons' Single to Celebrate Epic Flyby By Nola Taylor Redd published 2 January 19 Only moments before New Horizons flew by the most distant solar system object ever visited, astrophysicist and Queen guitarist Brian May released his new single based on the mission.
Antarctica: The Southernmost Continent By Nola Taylor Redd published 21 September 18 Antarctica is the coldest, windiest, and driest continent. Because so little moisture falls as rain or snow, Antarctica is classified as a desert.
We Could Find Aliens by Spotting Their Satellites By Nola Taylor Redd published 1 May 18 Alien civilizations with technology levels similar to that of Earth could be visible with current instruments, if they've hoisted enough satellites into orbit, a new study suggests.
Why Is Jupiter's Great Spot Red? By Nola Taylor Redd published 8 February 18 What gives Jupiter's Great Red Spot its distinct color? A new study shows why the answer may not be easy to find.
Teach Your Kids About the Super Blue Blood Moon of Jan. 31 with These Activities By Nola Taylor Redd published 29 January 18 Get children and teens ready for the lunar eclipse (and supermoon!) with these fun STEM activities.
Origin of Universe's Most Energetic Particles Possibly Found By Nola Taylor Redd published 25 January 18 A new theory connects three of the most energetic particles in the universe.
200-Year-Old Journal Reveals Rare American Sunspot Records By Nola Taylor Redd published 8 December 17 A journal of a Maine reverend reveals detailed sunspot observations during the 1816 "year without a summer."
World Trade Center: Ground Zero on September 11, 2001 By Nola Taylor Redd published 11 September 17 The twin towers dominated the New York skyline for decades.
What To Do If Your Solar Eclipse Glasses Won't Arrive in Time By Nola Taylor Redd published 15 August 17 What do you do if your eclipse glasses haven't arrived, or have been recalled? Here are some other options for safely observing the eclipse.
Solar Eclipse Day Craziness Could Resemble the Zombie Apocalypse — Are You Ready? By Nola Taylor Redd published 21 July 17 Only one month left until the Great American Eclipse passes across the continental United States.
Flood Facts, Types of Flooding, Floods in History By Nola Taylor Redd published 26 June 17 Wherever rain falls, a flood can occur.
'Dragonfly' Drone Could Explore Saturn Moon Titan By Nola Taylor Redd published 26 April 17 A relocatable lander could explore the hazy skies of Saturn's intriguing moon Titan, according a new mission proposal.
After Dino-Killing Asteroid Impact, Life Re-Emerged Quickly By Nola Taylor Redd published 28 March 17 Life re-emerged at the site of the dino-killing asteroid's impact at roughly the same time it began to thrive around the globe, despite suffering from worse conditions.
