Stories by Elizabeth Howell

The phenomenon, called a gravity wave, is likely produced by winds flowing over a mountain on the planet's surface

Signs seen on brown dwarf, an object bigger than a planet and smaller than a star

NASA’s interplanetary probe is cruising toward an encounter with our local gas giant this summer. As the data starts flowing in, we may also learn about Jupiter’s many cousins across the galaxy

After two years on the Red Planet, NASA's Curiosity rover rules out a seasonal explanation for an observed methane spike

Asteroid TB145 will make a near pass of our planet, offering astronomers a chance for an up-close radar view of its surface

After more than a year in orbit around a comet, the European Rosetta spacecraft and its icy dance partner are hitting a huge milestone: their closest approach to the sun

Discovering the first true “alien Earth” is a long-held dream of astronomers. Recent exoplanet discoveries suggest that their dream will come true in the not-too-distant future

The Rosetta spacecraft, currently orbiting Comet 67P/Churyumov-Gerasimenko, has spotted 120 bright, reflective spots on the surface of the comet, for which water ice is a plausible explanation

Ed White’s first foray into the vacuum of space on June 3, 1965, set the stage for future spacewalks to assemble stations and repair telescopes

Called npj Microgravity, the open-access journal will highlight scientific advances in various fields that are facilitated by spaceflight

Severe weather is forecast for today in two regions of the Midwest and Plains states, and more damaging winds could blow tomorrow

The team intends to rescue the International Sun-Earth Explorer 3 and then focus on what to use the spacecraft for

The detection of a runaway star may explain how a massive object turned into a dense, magnetic magnetar instead of collapsing into a black hole

Researchers guess that the whales' acoustic spaces are being reduced by 50 percent or 80 percent

Legislation enacted in 1970 may have drastically improved Atlanta's rainfall values

The first attempt to send 2,000 cherry trees to the U.S. did not go well. The trees were infested with pests. Diplomacy resolved the issue

The episode underscores the role that scientific peer review should play in vetting discovery claims

Water on the moon was there as the moon formed, not delivered later by solar wind and comets

Astronomers estimate 4.5 billion Earth-like planets are spread throughout the Galaxy