Houstonians can now opt into a citywide solar co-op. Photo courtesy of Houston Mayor's Office

One year ago, the city of Houston announced its Climate Action Plan and its goal to reach carbon neutrality by 2050. This year, the city has another Earth Day announcement that builds upon CAP.

Mayor Sylvester Turner and solar nonprofit group, Solar United Neighbors, announced a citywide solar co-op on Earth Day — exactly one year since CAP launched. For an update on the plan's execution in Houston, click here for a report from the Kinder Institute for Urban Research.

"As we celebrate Earth Day, I'm proud to welcome this community-driven initiative for local rooftop solar and thank Solar United Neighbors for being such a strong supporter of the Houston Climate Action Plan," says Mayor Turner in a news release. "I encourage Houstonians to take full advantage of this opportunity to learn more about the benefits of residential solar and how they can take part. Bulk buy programs like this will help our city meet our energy transition goals and grow local investment in renewable and resilient energy."

SUN is familiar with Houston, and, since 2018, the nonprofit has hosted six neighborhood solar co-ops in Spring Branch, Lake Olympia, East Houston, Central Houston, the Woodlands, and West Houston. According to SUN, Texas solar co-ops provide 569 kW of solar power, $1.64 million in local economic investment, and more than 18.4 million pounds of lifetime carbon offsets.

"The co-op will enable homeowners and business owners in and around the city of Houston to join the growing community of people taking control of their energy bills and improving grid resilience by harnessing solar power," says Hanna Mitchell, Texas program director for SUN, in the release. "Together, we're building a movement to transform our electricity system into one that is cleaner, fairer, and shares its benefits more broadly."

Data from Environment Texas shows that Houston's installed solar capacity has quadrupled from 2018 to 2020, and Houston is the nation's largest municipal user of renewable energy in the United States, according to the release. Additionally, Houston Permitting Center saw a 63 percent increase in solar installation permits from 2019 to 2020.

For more information on the co-op, visit SUN's Houston website. Or, sign up for one of the two information sessions on Thursday, May 6, at 6:30 pm, or Wednesday, May 19, at noon.

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Axiom Space-tested cancer drug advances to clinical trials

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A cancer-fighting drug tested aboard several Axiom Space missions is moving forward to clinical trials.

Rebecsinib, which targets a cancer cloning and immune evasion gene, ADAR1, has received FDA approval to enter clinical trials under active Investigational New Drug (IND) status, according to a news release. The drug was tested aboard Axiom Mission 2 (Ax-2) and Axiom Mission 3 (Ax-3). It was developed by Aspera Biomedicine, led by Dr. Catriona Jamieson, director of the UC San Diego Sanford Stem Cell Institute (SSCI).

The San Diego-based Aspera team and Houston-based Axiom partnered to allow Rebecsinib to be tested in microgravity. Tumors have been shown to grow more rapidly in microgravity and even mimic how aggressive cancers can develop in patients.

“In terms of tumor growth, we see a doubling in growth of these little mini-tumors in just 10 days,” Jamieson explained in the release.

Rebecsinib took part in the patient-derived tumor organoid testing aboard the International Space Station. Similar testing is planned to continue on Axiom Station, the company's commercial space station that's currently under development.

Additionally, the drug will be tested aboard Ax-4 under its active IND status, which was targeted to launch June 25.

“We anticipate that this monumental mission will inform the expanded development of the first ADAR1 inhibitory cancer stem cell targeting drug for a broad array of cancers," Jamieson added.

According to Axiom, the milestone represents the potential for commercial space collaborations.

“We’re proud to work with Aspera Biomedicines and the UC San Diego Sanford Stem Cell Institute, as together we have achieved a historic milestone, and we’re even more excited for what’s to come,” Tejpaul Bhatia, the new CEO of Axiom Space, said in the release. “This is how we crack the code of the space economy – uniting public and private partners to turn microgravity into a launchpad for breakthroughs.”