Topic: Pamela Gay
JWST Catches the Re-lighting of the Universe

JWST Catches the Re-lighting of the Universe

by | Apr 7, 2025 |

There are certain key questions that go hand in hand with mapping the changing nature of Dark Energy.  For instance, we’re looking to the early universe to see when the first galaxies came to light and how fast they and other structures grew into systems we might see in our modern universe. And while DESI, Euclid, and SphereX are out there mapping how structures evolved, it’s JWST that is showing us how they formed. Prior to JWST’s annoyingly early Christmas Day launch - for which I remain bitter - we had thought galaxies started to light up around a billion years after the universe...

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Gaia Watches the Universe Form

Gaia Watches the Universe Form

by | Apr 10, 2024 |

Credit: ESA/Gaia/DPAC; Lucy Reading-Ikkanda/Simons Foundation; K. Storey-Fisher et al. 2024 In trying to understand our universe, theorists can build models that describe how the universe formed as a mostly, but not completely, smooth distribution of matter and energy...

Galactic Death may not be Permanent

Galactic Death may not be Permanent

by | Mar 27, 2024 |

False-colour JWST image of a small fraction of the GOODS South field, with JADES-GS-z7-01-QU highlighted. Credit: JADES Collaboration In a paper in Nature, with Tobias Looser as the first author, researchers discuss a galaxy cataloged as JADES-GS-z7-01-QU. This...

Galaxies are Born Bright

Galaxies are Born Bright

by | Mar 27, 2024 |

This image from Webb’s NIRCam (Near-Infrared Camera) instrument shows a portion of the GOODS-North field of galaxies. At the lower right, a pullout highlights the galaxy GN-z11, which is seen at a time just 430 million years after the Big Bang. One prominent...

Can Radar Protect Us From the Earth-Killer?

Can Radar Protect Us From the Earth-Killer?

by | Mar 20, 2024 |

Deep Space Station 13 at NASA’s Goldstone complex in California – part of the agency’s Deep Space Network – is an experimental antenna that has been retrofitted with an optical terminal. In a first, this proof of concept received both radio frequency and laser signals...

Using Radar to Watch Asteroid Rotation

Using Radar to Watch Asteroid Rotation

by | Mar 20, 2024 |

The day before asteroid 2008 OS7 made its close approach with Earth on Feb. 2, this series of images was captured by the powerful 230-foot (70-meter) Goldstone Solar System Radar antenna near Barstow, California. Credit: NASA/JPL-Caltech One of the most...

Closer Look: We are Space Stuff

Closer Look: We are Space Stuff

by | Feb 28, 2024 |

Courtesy TeePublic It is possible to buy stickers, sweatshirts, mugs, and all manner of other stuff and things emblazoned with the simple phrase, “We are star stuff”. Carl Sagan popularized this phrase, and it serves as a gentle reminder that all the complex atoms -...

Migration Solves Exoplanet Puzzle

Migration Solves Exoplanet Puzzle

by | Feb 28, 2024 |

Artistic representation of an exoplanet whose water ice on the surface is increasingly vaporizing and forming an atmosphere during its approach to the central star of the planetary system. This process increases the measured planetary radius compared to the value the...