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A rotating neutron star periodically swings radio rays (green) and gamma rays (magenta) past Earth in this artist’s concept of a black widow pulsar. The pulsar heats the side of its stellar mate that faces twice as hot as the sun’s surface and slowly vaporizes it. Credit: NASA Goddard Space Flight Center/Cruz deWilde Observations of a planet-sized dim star helped weigh its pulsar companion milliseconds. A collapsing solid star has torn apart and consumed almost the entire mass of its companion star and, in the process, grew into the heaviest star. neutron star A neutron star is the collapsing core of a large star (between 10 and 29 solar masses). Neutron stars are the smallest and densest stars that have ever existed. Although neutron stars typically have a radius of only 10 – 20 kilometers (6 – 12 miles), they can have a mass of about 1.3 – 2.5 the mass of the Sun. ” data-gt-translate-attributes=”[{” attribute=””>neutron s...

Australian cyclist Tiffany Cromwell is about to make a dream that once seemed impossible. The 34-year-old Olympic athlete will join the Canyon-SRAM Racing Team for the inaugural women’s Tour de France Femmes, which kicks off on July 24. “This will be a historic moment for women’s cycling,” said Cromwell. “We have been pushing the women’s Tour de France for several years and have finally been given a very exciting global platform for the sport.” It was the first time since the 1980s that the women’s equivalent of the Tour de France was held. The Tour de France Femmes is expected to be one of the most watched races on the women’s calendar and will kick off in Paris the same day the men’s race finishes. It will cover 1,029 kilometers and eight stages that will include flat sprints, mountain top finishes, rock and gravel sector, country trails and city walks. Cromwell is experienced in competing in the cobblestone sector. ( Getty ...

Sunrise Sam Mac partner Rebecca James has posted a heart-melting Instagram tribute to the man she describes as “my best friend and my rock.” The couple was expecting their first child together and the love was definitely real. VIEW THE VIDEO ABOVE: Sam Mac finds his book has been reduced to a dollar For more Celebrity related news and videos, check out Celebrities >> Fashion stylist Rebecca says when Sam doesn’t get up at 4am to read the weather, “every minute is dedicated to bub and me, who never go unnoticed.” He then engages in a long, funny thought bubble about all the sweet things he does for her. “From leaving cute love notes on the chicken, dropping me off at the airport when he’s physically exhausted, surprising me at work with a turmeric almond milk latte, never missing our weekly Aldi grocery store, being by my side when he can be with all things baby Mac. , went to The Source and gave us our favorite protein balls, would gladly accept th...