NASA’s Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star’s habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface. A team of scientists, including Andrew Vanderburg of The University of Texas at Austin, confirmed the find, called TOI 700 d, using NASA’s Spitzer Space Telescope and have modeled the planet’s potential environments to help inform future observations.

AUSTIN, Texas — Twin stars appear to share chemical “DNA” that could help scientists map the history of the Milky Way galaxy, according to new research by astronomer Keith Hawkins of The University of Texas at Austin accepted for publication in The Monthly Notices of the Royal Astronomical Society.

Hawkins knows something about twin similarities and differences, being himself a fraternal twin. His own study of stellar twins “is a kind of a ‘23 and Me’ for stars,” he said with a laugh.

AUSTIN — Astronomer Caitlin Casey of The University of Texas at Austin has used the Atacama Large Millimeter/submillimeter Array (ALMA) to spot the light of a massive galaxy seen just 970 million years after the Big Bang. This galaxy, called MAMBO-9, is the most distant dusty star-forming galaxy that has ever been observed without the help of a gravitational lens.

FORT DAVIS, Texas — A new telescope was dedicated yesterday at The University of Texas at Austin’s McDonald Observatory. The 1-meter telescope, funded by the Heising-Simons Foundation, is part of the Las Cumbres Observatory (LCO) global network of robotic telescopes.

“We are very pleased to host this new telescope and to conduct additional research by Texas astronomers on the LCO network, and we thank the Heising-Simons Foundation and the Las Cumbres Observatory for making this additional research tool possible,” said Taft Armandroff, Director of McDonald Observatory.

GMTO Corporation, the organization managing the development of the Giant Magellan Telescope (GMT) on behalf of its U.S. and international founders, has signed a contract with MT Mechatronics and Ingersoll Machine Tools to design, build and install the telescope’s precision steel structure.

FORT DAVIS, Texas — Astronomers at The University of Texas at Austin’s McDonald Observatory, along with colleagues at Caltech and elsewhere, have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system, it would swing from within our asteroid belt to out beyond Neptune. Other giant planets with highly elliptical orbits have been found around other stars, but none of those worlds were located at the very outer reaches of their star systems like this one.

A new study using data from NASA's Spitzer Space Telescope provides a rare glimpse of conditions on the surface of a rocky planet orbiting a star beyond the Sun. The study, published today in the journal Nature, shows that the planet's surface may resemble those of Earth's Moon or Mercury: The planet likely has little to no atmosphere and could be covered in the same cooled volcanic material found in the dark areas of the Moon's surface, called mare.

FORT DAVIS, TEXAS — A $257,000 gift to The University of Texas at Austin’s McDonald Observatory from Apache Corporation will fund the observatory’s ongoing efforts to preserve the dark West Texas skies that make research possible and provide unsurpassed views of the universe to visitors.

StarDate Radio is announcing today that Billy Henry is the program’s new voice. Henry, an Austin-based voice talent, musician, composer, and college lecturer, becomes the third narrator of the program in its 41-year history. He assumes the title from Sandy Wood, who retired from the program yesterday. Henry’s first program airs today.

Sandy Wood, the popular and charismatic announcer of the StarDate radio program, is retiring after 28 years on the air. Her final episode will air July 16.

StarDate is the longest running nationally syndicated science program on American radio. Produced by The University of Texas at Austin’s McDonald Observatory, the program began in 1978. It brings a daily two-minute message of astronomy and skywatching to 2.3 million weekly listeners via more than 300 stations across the country. Wood took over from original announcer Joel Block after the program’s first dozen years.