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Russian cosmonauts may not fly on SpaceX's Crew Dragon until 2022

With three crewed launches under its belt, SpaceX has now flown astronauts representing not only NASA, but also the European and Japanese space agencies. But there's a glaring absence: Russia. Despite months of ongoing negotiations, NASA and its ...

NASA's Mars helicopter Ingenuity will attempt its boldest flight yet today

The small chopper will attempt its fourth flight today (April 29) at its Wright Brothers Field in Mars' Jezero Crater, where it landed with NASA's Perseverance rover, and this one aims to be its biggest and boldest yet.

See the 'Super Pink Moon' of April 2021 shine in these stunning photos

Skywatchers around the world, from Italy to England and the United States, captured stunning views of the pink supermoon, which is the first of only two "supermoons" in 2021 — depending on who you ask.

Astronauts describe "pure acceleration" of SpaceX Crew Dragon launch to space station

CBS News

CBS News

When the countdown hit zero last Friday and the engines powering a previously flown Falcon 9 first stage roared to life for takeoff, the four astronauts strapped into a SpaceX Crew Dragon some 21 stories up started laughing. "So we're sitting on the launch ...

Eastern and Western house mice took parallel evolutionary paths after colonizing US

The European house mouse has invaded nearly every corner of the Americas since it was introduced by colonizers a few hundred years ago, and now lives practically everywhere humans store their food. Yet in that relatively short time span—400 to 600 ...

A widespread pathway for substitution of adenine by diaminopurine in phage genomes

Science Magazine

Science Magazine

DNA modifications vary in form and function but generally do not alter Watson-Crick base pairing. Diaminopurine (Z) is an exception because it completely replaces adenine and forms three hydrogen bonds with thymine in cyanophage S-2L genomic DNA.

'The line is getting fuzzier': Asteroids and comets may be more similar than we think

As anyone who has ever tried to clean a home knows, ridding yourself of dust is a Sisyphean effort. No surface stays free of it for long. It turns out that space is somewhat similar. Space is filled with interplanetary dust, which the Earth constantly collects as it ...

A 22-Million-Year Journey From the Asteroid Belt to Botswana

The New York Times

The New York Times

Astronomers reconstructed a space rock's path before it exploded over southern Africa in 2018 and sprinkled the Kalahari with meteorites.

Hubble watches how a giant planet grows

Researchers using Hubble directly measured the mass growth rate of PDS 70b for the first time by using the observatory's unique ultraviolet sensitivities to capture radiation from extremely hot gas falling onto the planet. The massive, Jupiter- ...

Mars helicopter to push the limits on its fourth flight

CNN

CNN

(CNN) The Ingenuity helicopter has risen to every challenge it has faced on Mars so far. Now, it's ready to fly even further, faster and longer than before. The 4-pound chopper will attempt its fourth flight on the red planet on Thursday at 10:12 a.m. ET, or 12:30 ...